Johnson et al 2014 HP - water temperature relationships.pdf (1 MB)
Inferring air-water temperature relationships from river and catchment properties
journal contribution
posted on 2014-11-18, 14:33 authored by Matthew F. Johnson, Robert WilbyRobert Wilby, Julia TooneWater temperature (Tw) is a key determinant of freshwater ecosystem status and cause for concern under a changing climate. Hence, there is growing interest in the feasibility of moderating rising Tw through management of riparian shade. The Loughborough University Temperature Network (LUTEN) is an array of 36 water and air temperature (Ta) monitoring sites in the English Peak District set-up to explore the predictability of local Tw, given Ta, river reach, and catchment properties. Year 1 of monitoring shows that 84%-94% of variance in daily Tw is explained by Ta. However, site-specific logistic regression parameters exhibit marked variation and dependency on upstream riparian shade. Perennial spring flows in the lower River Dove also affect regression model parameters and strongly buffer daily and seasonal mean Tw. The asymptote of the models (i.e. maximum expected Tw) is particularly sensitive to groundwater inputs. We conclude that reaches with spring flows potentially offer important thermal refuges for aquatic organisms against expected long-term warming of rivers and should be afforded special protection. © 2013 John Wiley & Sons, Ltd.
Funding
We are grateful to the Wild Trout Trust and Trent Rivers Trust for their sponsorship
History
School
- Social Sciences
Department
- Geography and Environment
Published in
Hydrological ProcessesVolume
28Issue
6Pages
2912 - 2928Citation
JOHNSON, M.F., WILBY, R.L. and TOONE, J.A., 2014. Inferring air-water temperature relationships from river and catchment properties. Hydrological Processes, 28 (6), pp. 2912 - 2928.Publisher
© John Wiley & Sons, Ltd.Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2014Notes
This is the accepted version of the following article: JOHNSON, M.F., WILBY, R.L. and TOONE, J.A., 2014. Inferring air-water temperature relationships from river and catchment properties. Hydrological Processes, 28 (6), pp. 2912 - 2928 which has been published in final form at: http://dx.doi.org/10.1002/hyp.9842ISSN
0885-6087eISSN
1099-1085Publisher version
Language
- en