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Variability of dissolved CO2 in the Pang and Lambourn Chalk rivers.

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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    Abstract

    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: Article
    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
    ID Code: 26276
    Deposited By: Prof Andrew Binley
    Deposited On: 28 Apr 2009 10:53
    Refereed?: Yes
    Published?: Published
    Last Modified: 26 Jul 2012 16:31
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/26276

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