Pontbren neutron probe soil moisture data

This dataset includes neutron probe data measured across the Pontbren study catchment in mid-Wales, UK. Neutron probe access tubes were installed at various locations across the site and measurements taken between 2006-2009 as part of the Pontbren Catchment Study Land Use and Management Multi-Scale Experimental Programme. To estimate profile volumetric soil moisture content (cm3 cm-3), measurements were taken every 10 cm down the soil profile to a maximum depth of 120 cm below the soil surface. Raw neutron probe count data (16 second sampling time) are provided along with shield count (1 x 64 second sampling time) and water count (average 5 x 64 second sampling time) data. These data are provided in .txt files and have columns indicating the site and plot name along with a time stamp. Depth of observation is shown in the column headings of the data. Due to access tubes becoming water logged it was sometimes not possible to carry out measurements at the lower depths of some of the access tubes. Details of the dataset, monitoring locations and how to convert neutron probe counts to volumetric moisture content are provided in the supporting documentation.

Publication date: 2012-04-02

Get the data


Study area
Temporal extent
2005-04-04    to    2010-12-31

Provenance & quality

Digital data subject to manual validation procedures during capture and transfer to the main geo database and through subsequent statistical analysis and modelling. Full details provided in the 'Pontbren Catchment Study Data catalogue'.

Supplemental information

Other useful information regarding this dataset:

The Flood Risk Management Research Consortium website
Wheater, H., Reynolds, B., McIntyre, N., Marshall, M., Jackson, B., Frogbrook, Z., Solloway, I., Francis, O. and Chell, J. 2008. Impacts of upland management on flood risk: multi-scale modelling on methodology and results from the Pontbren Experiment. FRMRC Research Report UR 16. December 2008.
Marshall, M.R., Francis, O.J., Frogbrook, Z.L., Jackson, B.M., McIntyre, N., Reynolds, B., Solloway, I., Wheater, H.S. and Chell, J. 2009. The impact of upland land management on flooding: results from an improved pasture hillslope. Hydrological Processes, 23, 464-475.

Correspondence/contact details

Marshall, M.
Centre for Ecology & Hydrology

Other contacts

Environmental Information Data Centre
NERC Environmental Information Data Centre

Additional metadata

Topic categories
Climatology / Meteorology / Atmosphere , Elevation , Environment , Farming , Inland Waters
CEH Project CO2699,  CEH Water Programme,  Flooding,  Flood risk management,  Hydrology,  Pontbren,  Soil,  Soil United Kingdom Wales Water
Environmental Monitoring Facilities
Spatial representation type
Tabular (text)
Spatial reference system
WGS 84
Last updated
18 October 2019 12:57