Dunbar, M.; Murphy, J.; Clarke, R.; Davies, C.; Scarlett, P.

Headwater stream water chemistry data 2007 [Countryside Survey]

This dataset consists of results of chemical analyses of single water chemistry samples, taken from headwater streams during a survey in 2007. Water samples were analysed at the Centre for Ecology and Hydrology for chemical analysis of alkalinity (at pH 8.3), total oxidised nitrogen and soluble reactive phosphorus. Conductivity and pH were measured in the field using a regularly calibrated field meter.
Data were collected under the Countryside Survey long term monitoring project managed by the Centre for Ecology & Hydrology. The Countryside Survey is a unique study or 'audit' of the natural resources of the UK's countryside. The sample sites are chosen from a stratified random sample, based on a 15 by 15 km grid of GB. Headwater stream surveys have been carried out in 1990, 1998 and 2007 with repeated visits to the majority of sites. The countryside is sampled and surveyed using rigorous scientific methods, allowing us to compare new results with those from previous surveys. In this way we can detect the gradual and subtle changes that occur in the UK's countryside over time. In addition to headwater stream data, soil data, habitat areas, vegetation species data and linear habitat data are also gathered by Countryside Survey.

Publication date: 2016-11-13

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Supporting documentation

Format of the dataset : Comma-separated values (CSV)

Licence terms and conditions apply

You must cite: Dunbar, M.; Murphy, J.; Clarke, R.; Davies, C.; Scarlett, P. (2016). Headwater stream water chemistry data 2007 [Countryside Survey] . NERC Environmental Information Data Centre. https://doi.org/10.5285/9d923383-4e3c-4aa4-95f5-0e5cdbc5853e


© Database Right/Copyright NERC - Centre for Ecology & Hydrology. All rights reserved.

The following acknowledgement shall be used on all copies of the data, publications and reports, including use in presentations to any audience. 'Countryside Survey data owned by NERC Centre for Ecology & Hydrology'

This dataset is part of the following


Study area
Temporal extent
2007-05-01    to    2007-12-01

Supplemental information

Other useful information regarding this dataset:

Dunbar, M.; Murphy, J.; Clarke, R.; Baker, R.; Davies, C.; Scarlett, P.. 2010 Countryside Survey: Headwater Streams Report from 2007. NERC/Centre for Ecology & Hydrology, 67pp. (CS Technical Report No. 8/07, CEH Project Number: C03259)

Provenance & quality

Water samples were collected in the summer of 2007 by field surveyors. Samples were taken from up to 591 1km squares sited across Britain, selected by random stratified sample. Samples were analysed according to standardized protocols at the Centre for Ecology and Hydrology, Lancaster in 2007/2008, or in the field. Data are managed by the Centre for Ecology and Hydrology.

Correspondence/contact details

Scarlett, P.
Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
OX10 8BB
United Kingdom


Dunbar, M.
Centre for Ecology & Hydrology
Murphy, J.
Centre for Ecology & Hydrology
Clarke, R.
Centre for Ecology & Hydrology
Davies, C.
Centre for Ecology & Hydrology
Scarlett, P.
Centre for Ecology & Hydrology

Other contacts

Environmental Information Data Centre
NERC Environmental Information Data Centre


Spatial representation type
Tabular (text)
Spatial reference system
OSGB 1936 / British National Grid


Topic categories
Environment , Inland Waters
Environmental Monitoring Facilities
Environmental survey Freshwater,  Great Britain,  Natural capital Water quality