Climate Risk in Dunsborough, WA
Dunsborough is a coastal town in Western Australia that faces a range of climate-related risks. These include flooding, bushfires, heatwaves, and coastal hazards such as sea level rise and erosion. The overall risk score is moderate, with coastal hazards and bushfire posing the most significant threats.
Overall Risk Score
Confidence: Medium
Hazard Breakdown
Detailed Hazard Analysis
heat Risk
Dunsborough experiences moderate heat risk, with increasing average temperatures and more frequent heatwaves projected. This can impact vulnerable populations and infrastructure.
Primary Drivers
- ·Rising global temperatures
- ·Urban heat island effect
Projections (RCP8.5)
2030
4.5
2050
5.2
flood Risk
Dunsborough faces a moderate risk of flooding, primarily from heavy rainfall events and potential riverine flooding from the nearby Toby Inlet. Low-lying areas are particularly vulnerable.
Primary Drivers
- ·Increased rainfall intensity
- ·Sea level rise
- ·Urban development increasing runoff
Projections (RCP8.5)
2030
5.0
2050
5.8
coastal Risk
Dunsborough faces a high coastal risk due to its location on the coast. Sea level rise and increased storm surge events threaten coastal erosion and inundation.
Primary Drivers
- ·Sea level rise
- ·Increased storm intensity
- ·Coastal erosion
Projections (RCP8.5)
2030
6.8
2050
7.5
bushfire Risk
Dunsborough has a high bushfire risk due to its proximity to extensive bushland. Hot, dry summers and strong winds exacerbate the risk.
Primary Drivers
- ·Dry vegetation
- ·High temperatures
- ·Strong winds
Projections (RCP8.5)
2030
6.2
2050
6.3
What This Means for Property Owners
Insurance Outlook
Insurance premiums are likely to increase in the future due to climate-related risks.
Price Impact
Properties in high-risk areas may experience a decrease in value.
Buyer Checklist
- 1.Check flood maps and bushfire prone area designations.
- 2.Assess property's vulnerability to coastal erosion and sea level rise.
- 3.Inquire about past flood or bushfire events.
- 4.Ensure adequate insurance coverage.
- 5.Consider energy efficiency and water conservation measures.
Local Climate Evidence
Flood Evidence
- Nearest Waterway
- Toby Inlet
- Elevation Range
- 0-30m
- Flood Zone
- Areas near Toby Inlet and low-lying coastal regions
Historical flood events have impacted properties near the inlet. Council is undertaking studies to improve drainage infrastructure.
View council flood mapBushfire Evidence
- Distance to Bushland
- Adjacent to extensive bushland areas
- Planning Overlay
- DFES Bushfire Prone Area Map
- Bushfire Prone Area
- Yes
Many properties are located in designated bushfire prone areas. Residents are advised to prepare bushfire survival plans.
Heat Evidence
- Avg January Max Temp
- 30.5°C
- Heat Stress Days/Year
- 3 days
The number of days exceeding 35°C is projected to increase in the future.
Coastal Evidence
- Distance to Coast
- 0.5 km
- Sea Level Rise Exposure
- Moderate to High
- Erosion Risk
- Moderate
Historical Climate Events
Heavy rainfall caused localised flooding in Dunsborough, impacting some residential areas.
SourceA bushfire near Dunsborough threatened properties and required emergency response.
SourceDunsborough experienced a prolonged heatwave with record-breaking temperatures.
SourceClimate Outlook to 2050
Projections based on CSIRO and BOM climate modelling. Scenario: RCP4.5
| Hazard | Today | 2030 | 2050 |
|---|---|---|---|
| flood | 4.5 | 4.7(+0.2) | 5.3(+0.8) |
| bushfire | 6.0 | 6.1(+0.1) | 6.5(+0.5) |
| heat | 4.0 | 4.4(+0.4) | 5.0(+1.0) |
| coastal | 6.3 | 6.8(+0.5) | 7.8(+1.5) |
Under a moderate emissions scenario, Dunsborough is projected to experience a slight increase in overall climate risk by 2030. Coastal hazards and heatwaves are expected to become more frequent and intense.
CSIRO Climate ProjectionsAdaptation Recommendations
Upgrade Drainage Infrastructure
Near-termImprove drainage systems to manage increased rainfall and reduce flood risk in vulnerable areas.
Est. cost: Medium
Learn moreImplement Bushfire Management Strategies
ImmediateConduct fuel reduction burns, maintain firebreaks, and educate residents on bushfire preparedness.
Est. cost: Medium
Learn moreDevelop a Heatwave Management Plan
Near-termEstablish cooling centers, provide public awareness campaigns, and support vulnerable populations during heatwaves.
Est. cost: Low
Learn moreInvest in Coastal Protection Measures
Long-termConstruct sea walls, restore dunes, and implement managed retreat strategies to protect coastal assets from erosion and sea level rise.
Est. cost: High
Learn morePromote Water Conservation
Long-termEncourage water-wise gardening, install rainwater tanks, and implement water restrictions during dry periods.
Est. cost: Low
Learn moreAbout Dunsborough's Climate Risk Profile
Dunsborough, located in the southwest of Western Australia, is increasingly vulnerable to the impacts of climate change. The region is experiencing rising temperatures, changing rainfall patterns, and rising sea levels, all of which contribute to increased risks.
Flooding is a concern due to heavier rainfall events and potential riverine flooding from Toby Inlet. Low-lying areas are particularly susceptible. Bushfire risk is high due to the surrounding bushland, with hot, dry summers and strong winds creating ideal conditions for fires to spread.
Heatwaves are becoming more frequent and intense, posing a threat to vulnerable populations. Coastal hazards, including sea level rise and storm surges, threaten coastal erosion and inundation, impacting infrastructure and property.
Addressing these challenges requires a coordinated effort from local government, residents, and businesses to implement adaptation measures and reduce greenhouse gas emissions. Protecting Dunsborough's natural environment and community well-being is crucial in the face of a changing climate.
Data sources: BOM · CSIRO · DFES · DPAW
Local Government Resources
City of Busselton
Frequently Asked Questions
What are the main climate change risks in Dunsborough?
Dunsborough faces risks from flooding, bushfires, heatwaves, and coastal hazards like sea level rise and erosion. These risks are projected to increase with climate change.
How is the local council addressing climate change?
The City of Busselton is developing and implementing climate strategies to reduce emissions and adapt to the impacts of climate change. This includes improving drainage, managing bushfire risk, and protecting coastal areas.
What can residents do to prepare for bushfires?
Residents should prepare a bushfire survival plan, maintain their property, and stay informed about fire danger ratings and warnings. The DFES website provides valuable resources.
How can I protect my property from flooding?
Check flood maps to assess your property's risk, improve drainage around your home, and consider flood-proofing measures. Contact the council for advice on flood mitigation.
What support is available during heatwaves?
The local council and health services provide information and support during heatwaves. Stay hydrated, seek cooler environments, and check on vulnerable neighbours.
Is Dunsborough going to be underwater due to sea level rise?
While sea level rise poses a threat, Dunsborough is not expected to be completely submerged. However, some low-lying coastal areas will be at increased risk of inundation and erosion. Adaptation measures are crucial to protect these areas.
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