North Esk River Flood Profiles and Discharge Data

A collection of flood water surface profiles and discharge rates for the North Esk River in Tasmania, derived from hydrological studies by the University of New South Wales Water Research Laboratory. It includes modeled flood levels for 100-year and 200-year Average Recurrence Intervals (ARI), with specific discharge values such as 526 cumecs for a 100-year ARI event. The data was calibrated against historical flood events from 2005 and 2011.

Use Cases

• Model flood inundation extents using the 100-year and 200-year ARI flood level profiles for the North Esk River.
• Analyze the relationship between Average Recurrence Interval (ARI) and flood discharge rates, such as the 526 cumecs value for a 100-year event.
• Calibrate hydrological models using the documented peak discharges from the 2005 (470 cumecs) and 2011 (251 cumecs) flood events.
• Assess the impact of sea level rise on flood profiles by comparing the standard 100-year ARI profile with the profile incorporating an 800mm sea level rise.

Strengths

• Includes specific discharge values for multiple flood return periods, such as 526 cumecs for a 100-year ARI.
• Model calibration is based on two recorded historical flood events from 2005 and 2011.
• Profiles account for future conditions with an 800mm sea level rise scenario.

Limitations

• The dataset's spatial coverage is limited to the North Esk River from Black Bridge to Corra Linn.
• The underlying hydrological studies for the North and South Esk rivers were conducted in 2006 and 2008, respectively, which may not reflect current conditions.
• Sample data and specific column structure are unavailable, limiting immediate analytical use.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

Hydrological modeling by the University of New South Wales Water Research Laboratory (North Esk) and Hydro Consulting (South Esk), commissioned for planning purposes.

Time Range

Studies referenced from 2006 and 2008, with model calibration to 2005 and 2011 flood events.

Freshness

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Geography

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