North Esk and Tamar River Flood Profiles for Planning

Flood water surface profiles for the North Esk and Tamar rivers in Tasmania, Australia, derived from hydrological studies. It includes profiles for 100-year and 200-year Average Recurrence Interval (ARI) events, with discharges modeled for specific historical floods. The data is intended for planning purposes, incorporating scenarios with current sea levels and an 800mm sea level rise.

Use Cases

• Model flood risk for infrastructure planning using the 100-year and 200-year ARI profiles.
• Analyze the impact of sea level rise on flood elevations by comparing the standard 100-year ARI profile with the 800mm rise scenario.
• Calibrate hydrological models using the documented peak discharges from the 2005 (470 cumecs) and 2011 (251 cumecs) flood events.
• Compare flood discharge estimates between the North Esk (UNSW WRL 2006) and South Esk (Hydro Consulting 2008) hydrological studies for different ARIs.

Strengths

• Includes specific modeled discharges for 10, 20, 50, 100, and 500-year Average Recurrence Interval events.
• Profiles are calibrated to two recorded historical flood events (2005 and 2011).
• Contains planning scenarios for both current conditions and future sea level rise (800mm).

Limitations

• The dataset's spatial coverage is limited to a specific river reach from Black Bridge to Corra Linn on the North Esk and the Tamar River confluence.
• The underlying hydrological studies (2006, 2008) may not reflect the most recent climate or land-use conditions.
• Sample data and column structure are unavailable, limiting understanding of the data's granular format.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

Hydrological modeling commissioned from Hydro Consulting (South Esk) and the University of New South Wales Water Research Laboratory (North Esk).

Time Range

Studies conducted in 2006 and 2008; profiles calibrated to 2005 and 2011 flood events.

Freshness

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Geography

North Esk River from Black Bridge to Corra Linn, and the Tamar River confluence, Launceston, Tasmania, Australia.