North Esk River Flood Extent and Water Surface Profiles

Aggregating flood extent maps and water surface profiles for the North Esk River in Tasmania, derived from hydrological 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 discharges calibrated against historical floods from 2005 and 2011.

Use Cases

• Analyze flood risk by comparing 100-year ARI profiles with current sea levels versus an 800mm sea level rise scenario.
• Model flood discharges for different return periods using the provided North Esk and South Esk discharge tables.
• Calibrate hydrological models using the dataset's reference to the calibrated 2005 (470 cumecs) and 2011 (251 cumecs) flood events.
• Assess planning implications by mapping the flood extent from Black Bridge to Corra Linn with adopted tail-water levels.

Strengths

• Hydrological models were calibrated against two specific historical flood events (2005 and 2011).
• Includes discharge data for multiple Average Recurrence Intervals (ARI) such as 10, 20, 50, 100, and 500 years.
• Profiles account for sea level change with a specific 800mm rise scenario.

Limitations

• The core data is geospatial map-based; specific row and column counts for tabular analysis are not provided.
• The temporal focus is on specific historical studies (2006, 2008) and flood events, with the main map product from 2016.
• Spatial coverage is limited to the North Esk River from Black Bridge to Corra Linn and its junction with the Tamar.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

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

Time Range

Hydrological studies from 2006 and 2008, map from June 2016, calibrated to 2005 and 2011 flood events.

Freshness

The dataset metadata was last updated in March 2026, but the underlying hydrological studies and map are from 2016 and earlier.

Geography

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