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

Burt, T.P.; Worrall, F.; Howden, N.J.K.; Anderson, M.G.

doi:10.1002/hyp.10169

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

Burt, T.P.; Worrall, F.; Howden, N.J.K.; Anderson, M.G.

Authors

Tim Burt t.p.burt@durham.ac.uk

Professor Fred Worrall fred.worrall@durham.ac.uk
Professor

N.J.K. Howden

M.G. Anderson

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.

Citation

Burt, T., Worrall, F., Howden, N., & Anderson, M. (2015). Shifts in discharge-concentration relationships as a small catchment recover from severe drought. Hydrological Processes, 29(4), 498-507. https://doi.org/10.1002/hyp.10169

Journal Article Type	Article
Acceptance Date	Feb 4, 2014
Online Publication Date	Feb 8, 2014
Publication Date	Feb 15, 2015
Deposit Date	Mar 16, 2015
Publicly Available Date	Mar 24, 2015
Journal	Hydrological Processes
Print ISSN	0885-6087
Electronic ISSN	1099-1085
Publisher	Wiley
Peer Reviewed	Peer Reviewed
Volume	29
Issue	4
Pages	498-507
DOI	https://doi.org/10.1002/hyp.10169
Keywords	Drought, Water quality, Chemographs, Hysteresis.

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Copyright 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.