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Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment. / Mullinger, Neil J.; Pates, Jackie M.; Binley, Andrew M. et al.
In: Journal of Hydrology, Vol. 376, No. 1-2, 30.09.2009, p. 58-69.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Mullinger, NJ, Pates, JM, Binley, AM & Crook, NP 2009, 'Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment.', Journal of Hydrology, vol. 376, no. 1-2, pp. 58-69. https://doi.org/10.1016/j.jhydrol.2009.07.015

APA

Mullinger, N. J., Pates, J. M., Binley, A. M., & Crook, N. P. (2009). Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment. Journal of Hydrology, 376(1-2), 58-69. https://doi.org/10.1016/j.jhydrol.2009.07.015

Vancouver

Mullinger NJ, Pates JM, Binley AM, Crook NP. Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment. Journal of Hydrology. 2009 Sept 30;376(1-2):58-69. doi: 10.1016/j.jhydrol.2009.07.015

Author

Mullinger, Neil J. ; Pates, Jackie M. ; Binley, Andrew M. et al. / Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment. In: Journal of Hydrology. 2009 ; Vol. 376, No. 1-2. pp. 58-69.

Bibtex

@article{7fd3bfbf0360436da8e79d176153723e,
title = "Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment.",
abstract = "Radon is a powerful tracer of stream-aquifer interactions. However, it is important to consider the source and behaviour of radon in groundwater when interpreting observations of river radon in relation to groundwater discharge. Here we characterise the variability in groundwater radon concentrations in the riparian zone of a Chalk catchment. Groundwater 222Rn (radon) concentrations were determined in riparian zone boreholes at two sites in the Lambourn catchment, Berkshire, UK, over a two year period. In addition, borehole core material was analysed for 226Ra (radium) and to determine radon emanation. Radon and radium concentrations and radon emanation were found to change with depth and temporal variations in groundwater radon concentrations were found at different scales. The abundance of radium and emanation of radon increased nearer the surface leading to greater groundwater radon concentrations. It is shown that seasonal changes in water table elevation can to lead to variable radon concentrations in groundwater as zones of radon production become hydraulically active. Groundwater radon concentrations in shallow piezometers were found to respond to both seasonal changes in the water table and individual rainfall events. Riparian sources of radon can be variable and are therefore potentially influential in the radon signals observed in rivers and should be properly characterised when interpreting river radon inputs.",
keywords = "radon groundwater Chalk aquifer stream-aquifer interactions",
author = "Mullinger, {Neil J.} and Pates, {Jackie M.} and Binley, {Andrew M.} and Crook, {N. P.}",
note = "The final, definitive version of this article has been published in the Journal, Journal of Hydrology 376 (1-2), 2009, {\textcopyright} ELSEVIER.",
year = "2009",
month = sep,
day = "30",
doi = "10.1016/j.jhydrol.2009.07.015",
language = "English",
volume = "376",
pages = "58--69",
journal = "Journal of Hydrology",
publisher = "Elsevier Science B.V.",
number = "1-2",

}

RIS

TY - JOUR

T1 - Controls on the spatial and temporal variability of Rn-222 in riparian groundwater in a lowland Chalk catchment.

AU - Mullinger, Neil J.

AU - Pates, Jackie M.

AU - Binley, Andrew M.

AU - Crook, N. P.

N1 - The final, definitive version of this article has been published in the Journal, Journal of Hydrology 376 (1-2), 2009, © ELSEVIER.

PY - 2009/9/30

Y1 - 2009/9/30

N2 - Radon is a powerful tracer of stream-aquifer interactions. However, it is important to consider the source and behaviour of radon in groundwater when interpreting observations of river radon in relation to groundwater discharge. Here we characterise the variability in groundwater radon concentrations in the riparian zone of a Chalk catchment. Groundwater 222Rn (radon) concentrations were determined in riparian zone boreholes at two sites in the Lambourn catchment, Berkshire, UK, over a two year period. In addition, borehole core material was analysed for 226Ra (radium) and to determine radon emanation. Radon and radium concentrations and radon emanation were found to change with depth and temporal variations in groundwater radon concentrations were found at different scales. The abundance of radium and emanation of radon increased nearer the surface leading to greater groundwater radon concentrations. It is shown that seasonal changes in water table elevation can to lead to variable radon concentrations in groundwater as zones of radon production become hydraulically active. Groundwater radon concentrations in shallow piezometers were found to respond to both seasonal changes in the water table and individual rainfall events. Riparian sources of radon can be variable and are therefore potentially influential in the radon signals observed in rivers and should be properly characterised when interpreting river radon inputs.

AB - Radon is a powerful tracer of stream-aquifer interactions. However, it is important to consider the source and behaviour of radon in groundwater when interpreting observations of river radon in relation to groundwater discharge. Here we characterise the variability in groundwater radon concentrations in the riparian zone of a Chalk catchment. Groundwater 222Rn (radon) concentrations were determined in riparian zone boreholes at two sites in the Lambourn catchment, Berkshire, UK, over a two year period. In addition, borehole core material was analysed for 226Ra (radium) and to determine radon emanation. Radon and radium concentrations and radon emanation were found to change with depth and temporal variations in groundwater radon concentrations were found at different scales. The abundance of radium and emanation of radon increased nearer the surface leading to greater groundwater radon concentrations. It is shown that seasonal changes in water table elevation can to lead to variable radon concentrations in groundwater as zones of radon production become hydraulically active. Groundwater radon concentrations in shallow piezometers were found to respond to both seasonal changes in the water table and individual rainfall events. Riparian sources of radon can be variable and are therefore potentially influential in the radon signals observed in rivers and should be properly characterised when interpreting river radon inputs.

KW - radon groundwater Chalk aquifer stream-aquifer interactions

UR - http://www.scopus.com/inward/record.url?scp=69849085102&partnerID=8YFLogxK

U2 - 10.1016/j.jhydrol.2009.07.015

DO - 10.1016/j.jhydrol.2009.07.015

M3 - Journal article

VL - 376

SP - 58

EP - 69

JO - Journal of Hydrology

JF - Journal of Hydrology

IS - 1-2

ER -