North Esk and Tamar River Flood Water Surface Profiles

A collection of 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) flood events, with scenarios for current and projected sea level rise. The underlying hydrology was reviewed by Hydro Consulting and the University of New South Wales Water Research Laboratory.

Use Cases

• Model flood inundation extents using the 100-year ARI profile with an 800mm sea level rise scenario.
• Analyze the relationship between flood discharge (e.g., 470 cumecs from 2005) and water surface profiles for flood risk planning.
• Compare flood levels from North Esk and South Esk discharges for the same Average Recurrence Interval (ARI).
• Calibrate hydraulic models using data from the calibrated 2005 and 2011 flood events.

Strengths

• Includes specific flood discharge values for different Average Recurrence Intervals (ARIs), such as 614 cumecs for a 100-year ARI on the North Esk.
• Profiles are calibrated to two historical flood events: the 2005 flood (470 cumecs) and the 2011 flood (251 cumecs).
• Contains scenario-based data accounting for sea level rise (800mm increase).

Limitations

• The dataset's primary format is geospatial services (ARCGIS GEOSERVICES REST API) and HTML, which may require specialized GIS software for full analysis.
• The temporal coverage of the underlying hydrological studies is from 2006 and 2008, which may not reflect recent climate or land-use changes.
• The spatial coverage is limited to specific river reaches from Black Bridge to Corra Linn on the North Esk and the Tamar confluence.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

Hydrological modeling and review commissioned from Hydro Consulting and the University of New South Wales Water Research Laboratory.

Time Range

Hydrological studies from 2006 and 2008; profiles reference historical floods in 2005 and 2011.

Freshness

The metadata was last updated on 2026-03-20, but the core hydrological studies date from 2006 and 2008.

Geography

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