North Esk and Tamar River Flood Water Surface Profiles

Flood water surface profiles for the North Esk and Tamar rivers in Tasmania, Australia. It includes profiles for 100-year and 200-year Average Recurrence Interval (ARI) flood events, with discharges derived from hydrological studies by the University of New South Wales Water Research Laboratory and Hydro Consulting. The model was calibrated using flood events from August 2005 (470 cumecs) and June 2011 (251 cumecs).

Use Cases

• Model flood risk by analyzing 100-year and 200-year ARI flood water surface profiles for the North Esk and Tamar rivers.
• Assess sea level rise impacts by comparing the 100-year ARI profile under current conditions with the profile assuming an 800mm sea level rise.
• Calibrate hydrological models using the documented peak discharges from the 2005 (470 cumecs) and 2011 (251 cumecs) flood events.
• Analyze flood discharge relationships between the North Esk and South Esk rivers using the provided discharge tables for different ARIs.

Strengths

• Includes specific flood discharge data for the North Esk river across multiple Average Recurrence Intervals (ARIs), such as 1034 cumecs for a 10-year ARI.
• Hydrological models were calibrated against two real flood events with known peak discharges (470 cumecs in 2005 and 251 cumecs in 2011).
• Profiles account for future climate scenarios with an 800mm sea level rise condition included.

Limitations

• The dataset's spatial coverage is limited to the North Esk river from Black Bridge to Corra Linn and the Tamar river near Launceston, Tasmania.
• The core hydrological studies for the North Esk (2006) and South Esk (2008) are over 15 years old, which may not reflect current climate patterns.
• Sample data and specific row/column counts are unavailable, limiting assessment of data volume and granularity.

Provenance

Source

City of Launceston Open Data, authored by lccspatial.

Collection Method

Hydrological modeling based on studies by the University of New South Wales Water Research Laboratory (North Esk, 2006) and Hydro Consulting (South Esk, 2008).

Time Range

Hydrological studies reference data up to 2008; model calibration uses floods from 2005 and 2011.

Freshness

The metadata indicates a last update date of 2026-03-20, but the underlying hydrological studies are from 2006 and 2008.

Geography

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