Variability of dissolved CO2 in the Pang and Lambourn Chalk rivers

Griffiths, J.; Nutter, J.; Binley, A.; Crook, N.; Young, A.; Pates, J.. 2007 Variability of dissolved CO2 in the Pang and Lambourn Chalk rivers. Hydrology and Earth System Sciences, 11 (1). 328-339.

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Abstract/Summary

This paper presents the results of a two-year field campaign to determine the spatial and temporal variability of groundwater interaction with surface waters in two Cretaceous Chalk catchments (the Pang and Lambourn) in the Upper Thames in Berkshire, UK, based on measurement of dissolved carbon dioxide (CO2). Average stream water concentrations of dissolved CO2 were up to 35 times the concentration at atmospheric equilibrium. Mean groundwater concentrations of 85 and 70 times the atmospheric equilibrium were determined from borehole water sampled in the Pang and Lambourn respectively. Diurnal and seasonal variation of in-stream concentration of dissolved CO2 is not significant enough to mask the signal from groundwater inputs.

Item Type:	Publication - Article
Programmes:	CEH Programmes pre-2009 publications > Water
UKCEH and CEH Sections/Science Areas:	_ Hydrological Risks & Resources
ISSN:	1027-5606
Additional Keywords:	chalk, groundwater, alkalinity, pH, carbon dioxide, Pang, Lambourn, LOCAR
NORA Subject Terms:	Ecology and Environment Hydrology
Date made live:	21 Jan 2008 14:20 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/2132

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