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Technical Note: Testing an Improved Index for Analysing Storm Nutrient Hysteresis : Volume 12, Issue 8 (13/08/2015)

By Lloyd, C. E. M.

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Book Id: WPLBN0004012442
Format Type: PDF Article :
File Size: Pages 18
Reproduction Date: 2015

Title: Technical Note: Testing an Improved Index for Analysing Storm Nutrient Hysteresis : Volume 12, Issue 8 (13/08/2015)  
Author: Lloyd, C. E. M.
Volume: Vol. 12, Issue 8
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Freer, J. E., Johnes, P. J., M. Lloy, C. E., & Collins, A. L. (2015). Technical Note: Testing an Improved Index for Analysing Storm Nutrient Hysteresis : Volume 12, Issue 8 (13/08/2015). Retrieved from http://www.ebooklibrary.org/


Description
Description: School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK. Analysis of hydrochemical behaviour in extreme flow events can provide new insights into the process controls on nutrient transport in catchments. The examination of storm behaviours using hysteresis analysis has increased in recent years, partly due to the increased availability of high temporal resolution datasets for discharge and nutrient parameters. A number of these analyses involve the use of an index to describe the characteristics of a hysteresis loop in order to compare different storm behaviours both within and between catchments. This technical note reviews the methods for calculation of the hysteresis index (HI) and explores a new more effective methodology. Each method is systematically tested and the impact of the chosen calculation on the results is examined. Recommendations are made regarding the most effective method of calculating a HI which can be used for comparing data between storms and between different parameters and catchments.

Summary
Technical Note: Testing an improved index for analysing storm nutrient hysteresis

Excerpt
Aich, V., Zimmermann, A., and Elsenbeer, H.: Quantification and interpretation of suspended-sediment discharge hysteresis patterns: how much data do we need?, Catena, 122, 120–129, doi:10.1016/j.catena.2014.06.020, 2014.; Bowes, M. J., House, W. A., and Hodgkinson, R. A.: Phosphorus dynamics along a river continuum, Sci. Total Environ., 313, 199–212, doi:10.1016/s0048-9697(03)00260-2, 2003.; Bowes, M. J., Jarvie, H. P., Halliday, S. J., Skeffington, R. A., Wade, A. J., Loewenthal, M., Gozzard, E., Newman, J. R., and Palmer-Felgate, E. J.: Characterising phosphorus and nitrate inputs to a rural river using high-frequency concentration-flow relationships, Sci. Total Environ., 511, 608–620, doi:10.1016/j.scitotenv.2014.12.086, 2015.; Burt, T. P., Worrall, F., Howden, N. J. K., and Anderson, M. G.: Shifts in discharge-concentration relationships as a small catchment recover from severe drought, Hydrol. Process., 29, 498–507, doi:10.1002/hyp.10169, 2015.; Butturini, A., Alvarez, M., Bernal, S., Vazquez, E., and Sabater, F.: Diversity and temporal sequences of forms of DOC and NO3-discharge responses in an intermittent stream: predictable or random succession?, J. Geophys. Res.-Biogeosci., 113, G03016, doi:10.1029/2008jg000721, 2008.; Cerro, I., Sanchez-Perez, J. M., Ruiz-Romera, E., and Antiguedad, I.: Variability of particulate (SS, POC) and dissolved (DOC, NO3) matter during storm events in the Alegria agricultural watershed, Hydrol. Process., 28, 2855–2867, doi:10.1002/hyp.9850, 2014.; Darwiche-Criado, N., Comin, F. A., Sorando, R., and Sanchez-Perez, J. M.: Seasonal variability of NO3- mobilization during flood events in a Mediterranean catchment: the influence of intensive agricultural irrigation, Agr. Ecosyst. Environ., 200, 208–218, doi:10.1016/j.agee.2014.11.002, 2015.; Eder, A., Strauss, P., Krueger, T., and Quinton, J. N.: Comparative calculation of suspended sediment loads with respect to hysteresis effects (in the Petzenkirchen catchment, Austria), J. Hydrol., 389, 168–176, doi:10.1016/j.jhydrol.2010.05.043, 2010.; Evans, C. and Davies, T. D.: Causes of concentration/discharge hysteresis and its potential as a tool for analysis of episode hydrochemistry, Water Resour. Res., 34, 129–137, doi:10.1029/97wr01881, 1998.; Evans, D. J. and Johnes, P.: Physico-chemical controls on phosphorus cycling in two lowland streams. Part 1 – The water column, Sci. Total Environ., 329, 145–163, doi:10.1016/j.scitotenv.2004.02.016, 2004.; House, W. A. and Warwick, M. S.: Hysteresis of the solute concentration/discharge relationship in rivers during storms, Water Res., 32, 2279–2290, doi:10.1016/s0043-1354(97)00473-9, 1998.; Jarvie, H. P., Neal, C., Williams, R. J., Neal, M., Wickham, H. D., Hill, L. K., Wade, A. J., Warwick, A., and White, J.: Phosphorus sources, speciation and dynamics in the lowland eutrophic River Kennet, UK, Sci. Total Environ., 282, 175–203, doi:10.1016/s0048-9697(01)00951-2, 2002.; Jordan, P., Arnscheidt, A., McGrogan, H., and McCormick, S.: Characterising phosphorus transfers in rural catchments using a continuous bank-sid

 

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