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) events, with discharges calibrated to historical floods from 2005 and 2011. The data is intended for planning purposes, incorporating scenarios with current sea levels and an 800mm sea level rise.

Use Cases

• Model flood inundation extents using the 100-year and 200-year ARI water surface profiles for urban planning.
• Analyze the impact of an 800mm sea level rise on flood levels by comparing the two provided 100-year ARI profiles.
• Calibrate hydrological models using the documented North Esk flood discharges for the 2005 (470 cumecs) and 2011 (251 cumecs) events.
• Assess flood risk at specific locations like the Black Bridge, Corra Linn, and Hobblers Bridge using the geospatial river profiles.

Strengths

• Includes specific flood discharge values for the North Esk river across multiple return periods (e.g., 10-year ARI: 345 cumecs, 100-year ARI: 6142 cumecs).
• Profiles are calibrated to two recorded historical flood events (2005 and 2011), providing a basis for model validation.
• Contains planning-relevant scenarios, including a 100-year ARI profile with an 800mm sea level rise.

Limitations

• The spatial coverage is limited to specific reaches of the North Esk and Tamar rivers in Tasmania.
• The underlying hydrological studies for the North Esk (2006) and South Esk (2008) may not reflect current climatic or land-use conditions.
• Data format and structure are unclear as specific columns and sample data are unavailable.

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), calibrated to historical floods.

Time Range

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

Freshness

The dataset metadata was last updated in March 2026, but the core hydrological studies date from 2006 and 2008.

Geography

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