North Esk River Flood Profiles and Discharge Data

Flood water surface profiles and discharge data for the North Esk River in Tasmania, derived from hydrological studies. It includes profiles for 100-year and 200-year Average Recurrence Intervals (ARI) with different sea level conditions. The underlying hydrology was derived by the University of New South Wales Water Research Laboratory, and the model was calibrated using 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 profiles.
• Analyze flood discharge values (e.g., 345 cumecs for 10-year ARI) from the North Esk hydrology study to assess river capacity.
• Compare flood levels under current sea level conditions versus an 800mm sea level rise scenario for long-term planning.
• Validate hydrological models by comparing against calibration events, such as the 470 cumecs peak discharge from the August 2005 flood.

Strengths

• Includes specific flood discharge values for multiple Average Recurrence Intervals (ARI), such as 345 cumecs for a 10-year event.
• Hydrological model was calibrated against two recorded flood events (August 2005 and June 2011) with known peak discharges.
• Profiles account for different scenarios, including a 100-year ARI profile with an 800mm rise in sea level.

Limitations

• The spatial coverage is limited to the North Esk River from Black Bridge to Corra Linn, and does not provide a complete basin-wide analysis.
• Data freshness is uncertain as the core hydrological studies referenced are from 2006 and 2008, though the dataset itself was updated in 2026.
• The dataset's structure (e.g., column names, row count) is not explicitly defined in the provided input, which may complicate direct analysis.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

Hydrology derived by the University of New South Wales Water Research Laboratory (2006) for the North Esk; South Esk hydrology reviewed by Hydro Consulting (2008).

Time Range

Hydrological studies from 2006 and 2008; model calibrated to flood events in 2005 and 2011.

Freshness

Last updated in March 2026, but the underlying hydrological studies are from 2006 and 2008.

Geography

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