Griffiths, J. and Nutter, J. and Binley, Andrew and Crook, Nigel and Young, A. and Pates, J. (2007) Variability of dissolved CO2 in the Pang and Lambourn Chalk rivers. Hydrology and Earth System Sciences, 11 (1). pp. 328-339. ISSN 1027-5606
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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.
|Journal or Publication Title:||Hydrology and Earth System Sciences|
|Subjects:||G Geography. Anthropology. Recreation > GE Environmental Sciences|
|Departments:||Faculty of Science and Technology > Physics|
Faculty of Science and Technology > Lancaster Environment Centre
Faculty of Arts & Social Sciences > Law School
|Deposited By:||Prof Andrew Binley|
|Deposited On:||28 Apr 2009 10:53|
|Last Modified:||15 Jan 2016 01:07|
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