Soil Water Tension Measurements from Pontbren Grassland Site

Three tensiometers measured soil water tension at depths of 10 cm, 30 cm, and 50 cm. Data was sampled every 10 minutes from September 2008 to December 2009 at the Llyn Hir grassland site in Wales, UK, with each measurement accompanied by a quality assurance code.

Use Cases

• Analyze temporal patterns in soil water tension across the 10 cm, 30 cm, and 50 cm depth profiles.
• Correlate soil water tension data with rainfall and stream outflow data from the same Llyn Hir monitoring site.
• Use the quality assurance code to filter or weight measurements for hydrological model calibration.
• Study the relationship between soil moisture dynamics and flood risk in unimproved grassland catchments.

Strengths

• High-frequency temporal resolution with measurements taken every 10 minutes.
• Multi-depth profile with sensors at 10 cm, 30 cm, and 50 cm.
• Over 15 months of continuous data from September 2008 to December 2009.
• Includes a quality assurance code for each data point to support validation.

Limitations

• Data is provided in raw .txt files split into 6-month blocks, requiring parsing and merging.
• Limited spatial coverage to a single grassland site (Llyn Hir) within the Pontbren catchment.
• Unknown sensor count or row count makes assessing dataset scale difficult.

Provenance

Source

Environmental Information Data Centre

Collection Method

Measurements from an array of tensiometers installed at the Llyn Hir monitoring site.

Time Range

September 2008 to December 2009

Freshness

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Geography

Llyn Hir site, Pontbren study area, mid Wales, United Kingdom