Climate Risk Profile: Petersham, NSW
Petersham is a suburb in Sydney's Inner West, facing moderate risks from flooding and heatwaves. While bushfire and coastal risks are low, the increasing trends in flood and heat risks require attention and adaptation measures.
Overall Risk Score
Confidence: Medium
Hazard Breakdown
Detailed Hazard Analysis
heat Risk
Petersham experiences a moderate risk of heatwaves, particularly during the summer months. Urban heat island effect can exacerbate temperatures, posing health risks to vulnerable populations.
Primary Drivers
- ·Climate change
- ·Urban heat island effect
- ·Lack of green spaces
Projections (RCP8.5)
2030
6.5
2050
7.0
flood Risk
Petersham faces a moderate risk of flooding due to its proximity to waterways and low-lying areas. Intense rainfall events can lead to stormwater runoff and localised flooding.
Primary Drivers
- ·Increased rainfall intensity
- ·Urbanisation
- ·Inadequate drainage infrastructure
Projections (RCP8.5)
2030
7.0
2050
7.5
coastal Risk
Petersham is located inland and does not face a direct risk from coastal hazards such as sea level rise or coastal erosion.
Primary Drivers
- ·Distance from coast
Projections (RCP2.6)
2030
1.0
2050
1.0
bushfire Risk
The risk of bushfire in Petersham is relatively low due to its urban environment and distance from large bushland areas. However, grassfires can still pose a threat during dry periods.
Primary Drivers
- ·Dry vegetation
- ·High winds
- ·Accidental ignitions
Projections (RCP4.5)
2030
2.7
2050
2.9
What This Means for Property Owners
Insurance Outlook
Insurance premiums may increase due to flood risk.
Price Impact
Potential for minor price adjustments due to flood risk awareness.
Buyer Checklist
- 1.Check flood history of the property.
- 2.Assess drainage around the property.
- 3.Consider heat mitigation measures.
- 4.Review insurance options.
Local Climate Evidence
Flood Evidence
- Nearest Waterway
- Hawthorne Canal
- Elevation Range
- 10-30 meters
- Flood Zone
- Low to Moderate
Parts of Petersham are susceptible to flash flooding during heavy rainfall events. Drainage improvements are ongoing in some areas.
View council flood mapBushfire Evidence
- Distance to Bushland
- 2-5 km to nearest bushland
- Planning Overlay
- Not significantly covered by bushfire prone area overlay.
- Bushfire Prone Area
- No
While not a high-risk area, residents should still be aware of fire safety during dry periods.
Heat Evidence
- Avg January Max Temp
- 29°C
- Heat Stress Days/Year
- 3 days
Urban heat island effect contributes to higher temperatures compared to surrounding areas.
Coastal Evidence
- Distance to Coast
- 8 km
- Sea Level Rise Exposure
- No direct exposure to sea level rise.
- Erosion Risk
- No erosion risk.
Historical Climate Events
Heavy rainfall caused localised flooding in parts of Petersham, affecting some residential and commercial properties.
SourceProlonged heatwave conditions affected vulnerable residents, with increased hospital admissions for heat-related illnesses.
SourceHeavy rainfall led to flash flooding in low-lying areas, causing traffic disruptions and minor property damage.
SourceClimate Outlook to 2050
Projections based on CSIRO and BOM climate modelling. Scenario: RCP8.5
| Hazard | Today | 2030 | 2050 |
|---|---|---|---|
| flood | 6.5 | 7.0(+0.5) | 7.5(+1.0) |
| bushfire | 2.5 | 2.7(+0.2) | 2.9(+0.4) |
| heat | 6.0 | 6.8(+0.8) | 7.5(+1.5) |
| coastal | 1.0 | 1.0 | 1.0 |
By 2030, Petersham is projected to experience an increase in flood and heatwave risks under a high emissions scenario. More frequent and intense rainfall events are expected, along with higher average temperatures during summer.
CSIRO Climate ProjectionsAdaptation Recommendations
Improve Stormwater Drainage
Near-termUpgrade and expand stormwater drainage infrastructure to handle increased rainfall intensity and reduce the risk of localised flooding.
Est. cost: Medium
Learn moreIncrease Green Spaces
Near-termPlant more trees and create green spaces to reduce the urban heat island effect and provide shade during heatwaves.
Est. cost: Medium
Learn moreDevelop a Heatwave Management Plan
ImmediateImplement a heatwave management plan to protect vulnerable residents during extreme heat events, including cooling centers and community outreach programs.
Est. cost: Low
Learn moreRaise Community Awareness
Near-termEducate residents about climate risks and adaptation measures, including flood preparedness and heat safety tips.
Est. cost: Low
Learn morePromote Water Sensitive Urban Design
Long-termEncourage the use of water-sensitive urban design principles in new developments to reduce stormwater runoff and improve water quality.
Est. cost: Medium
Learn moreAbout Petersham's Climate Risk Profile
Petersham, located in the Inner West of Sydney, is primarily an urban environment. The suburb's climate risks are mainly associated with flooding and heatwaves. Its distance from coastal areas mitigates any significant coastal risks.
Flooding is a concern due to increased rainfall intensity and urban runoff. The existing drainage infrastructure may be insufficient to handle extreme rainfall events, leading to localised flooding. Residents and businesses should be prepared for potential disruptions during heavy rain.
Heatwaves pose a significant threat, especially to vulnerable populations. The urban heat island effect exacerbates temperatures, increasing the risk of heatstroke and other heat-related illnesses. Increasing green spaces and implementing cooling strategies can help mitigate this risk.
Bushfire risk is relatively low due to the suburb's urban nature. However, grassfires can still occur during dry periods, requiring vigilance and preventative measures. Maintaining clear areas around properties and being aware of fire danger ratings are important.
Overall, Petersham needs to focus on adapting to the increasing risks of flooding and heatwaves. Implementing effective stormwater management, increasing green spaces, and raising community awareness are crucial steps to enhance the suburb's resilience to climate change.
Data sources: BOM · CSIRO · SES NSW · Inner West Council
Local Government Resources
Inner West Council
Frequently Asked Questions
What are the main climate risks in Petersham?
The main climate risks in Petersham are flooding and heatwaves. The suburb is also subject to storms.
How can I prepare for a flood in Petersham?
You can prepare for a flood by knowing your flood risk, having an emergency plan, and keeping your property well-maintained. Check the Inner West Council website for flood maps and advice.
What can I do to stay safe during a heatwave in Petersham?
During a heatwave, stay indoors in air-conditioned environments, drink plenty of water, and avoid strenuous activities. Check on vulnerable neighbours and friends.
Is Petersham prone to bushfires?
Petersham is not highly prone to bushfires due to its urban environment. However, residents should still be aware of fire safety during dry periods and maintain clear areas around their properties.
Where can I find more information about climate change impacts in Petersham?
You can find more information about climate change impacts in Petersham on the Inner West Council website, the NSW Government environment website, and the CSIRO website.
What is the council doing to address climate change in Petersham?
The Inner West Council is implementing various initiatives to address climate change, including improving stormwater drainage, increasing green spaces, and promoting sustainable development practices.
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