Blackwater River High-Frequency Water Quality Measurements at Maghery

High-frequency measurements of dissolved oxygen and temperature recorded every 30 minutes at the foot of the Blackwater River at Maghery. The data is collected by NIEA’s Freshwater Monitoring and Assessment team using a field probe with specified sensor accuracy and is loaded onto the public platform approximately every 30 days. Data is provisional, non-validated, and may be subject to revisions due to environmental factors or sensor malfunction.

Use Cases

• Modeling diurnal and seasonal dissolved oxygen cycles based on high-frequency 30-minute measurements.
• Analyzing the relationship between water temperature and oxygen saturation in a riverine environment.
• Monitoring for potential water quality events or sensor anomalies using the long-term, high-frequency time series.

Strengths

• High temporal resolution with data recorded every 30 minutes.
• Sensor accuracy is specified: dissolved oxygen +/- 5% saturation, temperature +/- 0.1 degrees Celsius.
• Data is part of a long-term monitoring project, suggesting a continuous time series.

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 a deployed field probe with optical DO and temperature sensors.

Freshness

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

Geography

Foot of the Blackwater River at Maghery, Northern Ireland.