Six Mile River Dissolved Oxygen and Temperature Measurements at 30-Minute Intervals

A field probe deployed by NIEA’s Freshwater Monitoring and Assessment team records Dissolved Oxygen (%Saturation) and temperature (°C) in the Six Mile River downstream of Castle Farm Bridge, Antrim. Data is recorded every 30 minutes and loaded to the public platform approximately every 30 days. The dataset is non-validated and provisional, with sensor accuracy of +/- 5% for oxygen and +/- 0.1°C for temperature.

Use Cases

• Modeling diurnal and seasonal dissolved oxygen cycles based on high-frequency 30-minute measurements.
• Analyzing water temperature trends and thermal pollution events in the Six Mile River.
• Correlating dissolved oxygen saturation with potential environmental stressors mentioned in the description.
• Developing anomaly detection models for sensor malfunction or unusual water quality events.

Strengths

• High-frequency temporal resolution with measurements recorded every 30 minutes.
• Sensor accuracy specifications are provided: +/- 5% for dissolved oxygen and +/- 0.1°C for temperature.
• Part of a long-term monitoring project, suggesting potential for time-series analysis.

Limitations

• Data is explicitly noted as non-validated and provisional, subject to revision.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

NIEA’s Freshwater Monitoring and Assessment team, published via OpenDataNI.

Collection Method

Collected by an optical DO sensor and temperature sensor deployed in the river.

Freshness

Data is loaded approximately every 30 days; last metadata update was 2026-03-18.

Geography

Six Mile River downstream of Castle Farm Bridge, Antrim, Northern Ireland.