Technical Note: Testing an improved index for analysing storm discharge–concentration hysteresis

Charlotte E M Lloyd; Jim E Freer; Penny J Johnes; A. L. Collins

doi:10.5194/hess-20-625-2016

Technical Note: Testing an improved index for analysing storm discharge–concentration hysteresis

Charlotte E M Lloyd, Jim E Freer, Penny J Johnes, A. L. Collins

Research output: Contribution to journal › Article (Academic Journal) › peer-review

148 Citations (Scopus)

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Abstract

Analysis of hydrochemical behaviour during storm 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 data sets for discharge and water quality parameters. A number of these analyses involve the use of an index to describe the characteristics of a hysteresis loop in order to compare 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 water quality parameters and catchments.

Original language	English
Pages (from-to)	625-632
Number of pages	8
Journal	Hydrology and Earth System Sciences
Volume	20
Issue number	2
Early online date	4 Feb 2016
DOIs	https://doi.org/10.5194/hess-20-625-2016
Publication status	Published - Feb 2016

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Organic & Biological

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Full-text PDF (final published version)
This is the author accepted manuscript (AAM). The final published version (version of record) is available online via European Geosciences Union at http://dx.doi.org/10.5194/hess-20-625-2016. Please refer to any applicable terms of use of the publisher.
Final published version, 292 KBLicence: CC BY
Lloyd et al. 2016 Technical Note HESS
This is the final published version of the article (version of record). It first appeared online via EGU at http://www.hydrol-earth-syst-sci.net/20/625/2016/.
Final published version, 292 KBLicence: CC BY

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Demonstration Test Catchments - Phase 2: Demonstration Test Catchment - Phase 2
Johnes, P. J. (Principal Investigator)
1/04/15 → 31/03/19
Project: Research
DOMAINE: Characterisation of the nature, origins and ecological significance of dissolved organic matter in freshwater ecosystems
Johnes, P. J. (Principal Investigator), Evershed, R. P. (Co-Principal Investigator), Jones, D. (Co-Principal Investigator), Maberly, S. (Co-Principal Investigator), Jickells, T. (Co-Principal Investigator), Yates, C. A. (Researcher), Lloyd, C. E. M. (Researcher), Glanville, H. (Researcher), Mackay, E. (Researcher), Harrison, R. V. (Other ), Bayliss, C. E. (Student), Pemberton, J. (Student), Reay, M. (Student), Brailsford, F. (Technician), McIntyre, C. A. (Student), Owen, A. T. (Technician), Hopes, M. (Student), Evans, C. (Collaborator), Fenner, N. (Collaborator), Golyshin, P. (Collaborator), Ferrer, M. (Collaborator), Marshall, M. (Researcher) & Cooper, D. (Researcher)
1/04/14 → 31/12/19
Project: Research

Cite this

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title = "Technical Note: Testing an improved index for analysing storm discharge–concentration hysteresis",

abstract = "Analysis of hydrochemical behaviour during storm 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 data sets for discharge and water quality parameters. A number of these analyses involve the use of an index to describe the characteristics of a hysteresis loop in order to compare 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 water quality parameters and catchments.",

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AU - Johnes, Penny J

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PY - 2016/2

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AB - Analysis of hydrochemical behaviour during storm 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 data sets for discharge and water quality parameters. A number of these analyses involve the use of an index to describe the characteristics of a hysteresis loop in order to compare 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 water quality parameters and catchments.

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DO - 10.5194/hess-20-625-2016

M3 - Article (Academic Journal)

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JO - Hydrology and Earth System Sciences

JF - Hydrology and Earth System Sciences

IS - 2

ER -

Technical Note: Testing an improved index for analysing storm discharge–concentration hysteresis

Abstract

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Demonstration Test Catchments - Phase 2: Demonstration Test Catchment - Phase 2

DOMAINE: Characterisation of the nature, origins and ecological significance of dissolved organic matter in freshwater ecosystems

Cite this