North Esk River Flood Profiles with 100- and 200-Year Return Intervals

A 2026-updated dataset from the City of Launceston provides flood water surface profiles for the North Esk River from Black Bridge to Corra Linn. It includes profiles for 100-year and 200-year Average Recurrence Intervals (ARI), with scenarios for current sea level and an 800mm rise. The data is based on hydrology studies by the University of New South Wales Water Research Laboratory (2006) and Hydro Consulting (2008), calibrated against floods from 2005 and 2011.

Use Cases

• Modeling flood inundation extents based on discharge rates for specific return intervals.
• Assessing climate change impact on flood risk by comparing profiles with current and elevated sea levels.
• Calibrating hydrological models using the referenced 2005 (470 cumecs) and 2011 (251 cumecs) flood events.
• Planning infrastructure resilience by referencing the 100-year and 200-year ARI flood level profiles.

Strengths

• Includes specific discharge values for 10, 20, 50, 100, and 500-year flood return periods.
• Models calibrated against two recorded historical flood events (2005 and 2011).
• Provides profiles for both current sea level and a projected 800mm sea level rise scenario.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific Tasmanian river system studied.

Provenance

Source

City of Launceston Open Data (lccspatial)

Collection Method

Hydrology derived by University of New South Wales Water Research Laboratory (2006) and Hydro Consulting (2008), with model calibration to historical floods.

Time Range

Studies reference data from 2006 and 2008, with calibration to 2005 and 2011 events.

Freshness

Last updated 2026-03-25 13:27:54.119458; freshness should be verified.

Geography

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