North Esk River Flood Profiles With Sea Level Scenarios

Comprising flood water surface profiles for the North Esk and Tamar rivers, derived from hydrology studies by the University of New South Wales Water Research Laboratory and Hydro Consulting. It includes profiles for 100-year and 200-year Average Recurrence Interval (ARI) events, with a 100-year scenario incorporating an 800mm sea level rise. The data was calibrated against historical flood events from 2005 and 2011.

Use Cases

• Model flood inundation extents for the North Esk river using the provided 100-year and 200-year ARI flood level profiles.
• Assess coastal flood risk by analyzing the 100-year ARI profile adjusted for an 800mm sea level rise condition.
• Calibrate hydraulic models using the documented peak discharges from the 2005 (470 cumecs) and 2011 (251 cumecs) flood events.
• Compare flood discharge estimates for different return periods using the tabulated North Esk and South Esk discharge data.

Strengths

• Includes multiple modeled scenarios: a 100-year ARI profile, a 100-year ARI profile with 800mm sea level rise, and a 200-year ARI profile.
• Hydrological models were calibrated against two recorded historical flood events with known peak discharges (470 cumecs in 2005 and 251 cumecs in 2011).
• Discharge data is provided for specific Average Recurrence Intervals (ARIs), such as 10, 20, 50, 100, and 500 years, based on studies from 2006 and 2008.

Limitations

• The spatial coverage is limited to the North Esk river from Black Bridge to Corra Linn and the Tamar river, focused on the Launceston area of Australia.
• The underlying hydrology studies for the North Esk (2006) and South Esk (2008) may not reflect recent climatic or land-use changes.
• The dataset's primary stated purpose is for planning, which may limit its suitability for real-time flood forecasting or detailed engineering design without additional validation.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

Flood profiles were constructed using hydrology studies: North Esk discharges derived by the University of New South Wales Water Research Laboratory (2006) and South Esk discharges reviewed by Hydro Consulting (2008).

Time Range

The hydrology studies referenced are from 2006 and 2008. The dataset includes calibration to flood events in 2005 and 2011.

Freshness

The dataset metadata indicates a last update in March 2026, suggesting planned future maintenance.

Geography

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