Great Cumbung Swamp Geomorphology and Hydrology of the Lachlan River Terminus

A detailed geomorphological description of the Great Cumbung Swamp, the termination point of Australia's low-gradient Lachlan River. The dataset, sourced from the Australian Ocean Data Network, describes three distinct depositional environments: the sinuous Lachlan channel, the extensive Phragmites marsh, and surrounding overflow areas. It details processes like water loss through evaporation and infiltration, flood occurrence in 15-20% of years, and sediment composition dominated by black clays.

Use Cases

• Modeling low-gradient river termination and sediment deposition based on described channel morphology and sediment types.
• Studying wetland hydrology and salt balance based on described fresh water retention and infiltration mechanisms.
• Analyzing floodplain evolution based on described flood frequency, channel anastomosis, and micro-relief development.
• Comparing modern fluvial depositional environments to ancient fine-grained sedimentary rock records.

Strengths

• Detailed description of three distinct depositional environments within the swamp.
• Specific hydrological facts provided, such as flood occurrence in 15-20% of years and channel dimensions up to 40 meters wide.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data formats are HTML and PDF, which may require parsing to extract structured data.

Provenance

Source

Australian Ocean Data Network

Freshness

Last updated 2026-06-27 20:18:53.969512; freshness should be verified.

Geography

Great Cumbung Swamp, terminus of the Lachlan River, Eastern Australia