Vertical Light Profiles in Cleveland Bay During Dredging, 2016

The NESP TWQ 2.1.9 dataset from AIMS contains 94 vertical profiles of light and turbidity collected in Cleveland Bay over four days in September 2016. It includes spectral attenuation coefficients and raw irradiance data from a USSIMO hyperspectral sensor. The data was gathered during a period of routine maintenance dredging to support the development of an empirical solar irradiance model.

Use Cases

• Modeling spectral light attenuation in coastal waters based on Kd(lambda) coefficients.
• Analyzing the impact of dredging-induced turbidity on underwater irradiance based on the 94 profiles taken during the event.
• Calibrating remote sensing algorithms for water quality using in-situ hyperspectral irradiance measurements.
• Studying spatial and temporal variability of light profiles in a bay environment based on the latitude, longitude, date, and time data for each station.

Strengths

• Contains 94 distinct vertical profiles, providing multiple spatial and temporal snapshots.
• Includes both processed spectral attenuation coefficients (Kd) and raw normalized irradiance data from a hyperspectral sensor.
• Data collection occurred during a specific environmental perturbation (maintenance dredging), offering a controlled case study.

Limitations

• Contains NaN values for Kd where calculations were unreliable under highly turbid conditions, as noted in the description.
• Column-level documentation is absent; field semantics must be inferred after download.
• The temporal coverage is limited to a four-day period in September 2016.

Provenance

Source

Australian Ocean Data Network, likely originating from the Australian Institute of Marine Science (AIMS) as part of the NESP TWQ 2.1.9 project.

Collection Method

Vertical profiles measured using a USSIMO multispectral radiometer and IMO-NTU turbidity sensor; Kd coefficients calculated using the Beer-Lambert law.

Time Range

12–15 September 2016

Freshness

Last updated 2026-07-10 18:25:59.254124; freshness should be verified.

Geography

Cleveland Bay, Australia