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Shifts in discharge-concentration relationships as a small catchment recover from severe drought.

Burt, T.P. and Worrall, F. and Howden, N.J.K. and Anderson, M.G. (2015) 'Shifts in discharge-concentration relationships as a small catchment recover from severe drought.', Hydrological processes., 29 (4). pp. 498-507.

Abstract

This paper provides evidence of the recovery of a small, moorland catchment to a severe drought, the most extreme on record in the UK. We present a detailed water quality time series for the post-drought recovery period, from the first significant storm event at the end of the drought through three very wet months during which time the catchment fully wetted up. High-frequency observations were obtained using pump water samplers, at 15-min intervals for storm events and 2 hourly at other times. There are significant shifts in discharge-concentration response as the catchment wets up; initial behaviour is very different to later storms. Extreme drought may become more common in a warmer world, so it is increasingly important to understand water quality response during and after such episodes, if their impact on water resources and in-stream ecology is to be better anticipated.

Item Type:Article
Keywords:Drought, Water quality, Chemographs, Hysteresis.
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1002/hyp.10169
Publisher statement:This is the accepted version of the following article: Burt T. P., Worrall F., Howden N. J. K. and Anderson M. G. (2015), Shifts in discharge-concentration relationships as a small catchment recover from severe drought, Hydrological Processes, 29 (4): 498-507, which has been published in final form at http://dx.doi.org/10.1002/hyp.10169. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Date accepted:04 February 2014
Date deposited:24 March 2015
Date of first online publication:08 February 2014
Date first made open access:No date available

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