Blackwater River High-Frequency Water Quality Measurements at Maghery

High-frequency water quality measurements from a field probe at the foot of the Blackwater River at Maghery, Northern Ireland. The dataset is collected by NIEA’s Freshwater Monitoring and Assessment team, recording Dissolved Oxygen (% saturation) and temperature (°C) every 30 minutes. Data is provisional, non-validated, and uploaded approximately every 30 days, with the last update recorded on 2026-03-18.

Use Cases

• Modeling diurnal and seasonal dissolved oxygen cycles based on high-frequency 30-minute measurements.
• Analyzing water temperature trends and their relationship with environmental factors at a specific river location.
• Developing anomaly detection algorithms for sensor malfunction using the documented accuracy specifications.
• Assessing provisional water quality data for real-time monitoring applications before official validation.

Strengths

• Data is recorded at a high frequency of every 30 minutes, enabling fine-grained temporal analysis.
• Sensor accuracy is documented: dissolved oxygen +/- 5% saturation, temperature +/- 0.1°C.
• Update frequency is specified as approximately every 30 days, indicating regular data availability.

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 for large-scale modeling.

Provenance

Source

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

Collection Method

Collected by an optical DO sensor and temperature sensor deployed as part of a long-term monitoring project.

Freshness

Last updated 2026-03-18 11:22:49.614796; data is loaded approximately every 30 days.

Geography

Foot of the Blackwater River at Maghery, Northern Ireland.