Sediment Deposition from Dredging in Cleveland Bay, Australia

NESP TWQ 2.1.9 data from AIMS measures sediment deposition from a trailer suction hopper dredge in Platypus channel, Cleveland Bay. The dataset consists of one Excel file with hourly sensor readings of sediment deposition in mg/cm2/day from five sites at distances of 100m to 800m from the channel, alongside turbidity, water depth, and current speed measurements. Data underwent a quality assurance process to remove spikes and sensor fouling.

Use Cases

• Modeling sediment plume dispersion based on deposition rates measured at multiple distances from the dredge site.
• Assessing the environmental impact of dredging operations based on in-situ turbidity and sediment deposition data.
• Calibrating hydrodynamic models using concurrent measurements of current speed and water depth.
• Analyzing temporal patterns of sediment deposition based on high-frequency (10-20 minute interval) sensor readings.

Strengths

• Includes multi-sensor data from five distinct sites at 100m, 200m, 400m, and 800m distances from the dredging channel.
• Data underwent a specific QA algorithm to remove spikes by comparing readings to local averages.
• Sensor calibration follows established methods cited from Ridd et al. (2001), Thomas et al. (2003), and Whinney et al. (2017).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the single study location in Cleveland Bay.

Provenance

Source

Australian Institute of Marine Science (AIMS) under the National Environmental Science Program (NESP TWQ 2.1.9).

Collection Method

In-situ deployment of deposition sensors, nephelometers, pressure sensors, and tilt current meters on the seabed.

Freshness

Last updated 2026-07-10 21:27:11.169711; freshness should be verified.

Geography

Platypus channel in Cleveland Bay, Australia, with specific sensor coordinates provided.