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Title: Hysteresis-based analysis of overland metal transport
Authors: Mishra, Surendra Kumar
Sansalone J.J.
Singh V.P.
Published in: Hydrological Processes
Abstract: Introducing a concept of equivalent mass depth of flow, this study describes the phenomenon of non-point source pollutant (metal) transport for pavement (or overland) flow in analogy with wave propagation in wide open channels. Hysteretic and normal mass rating curves are developed for runoff rate and mass of 12 dissolved and particulate-bound metal elements (pollutants) using the rainfall-runoff and water quality data of the 15 × 20 m2 instrumented pavement in Cincinnati, USA. Normal mass rating curves developed for easy computation of pollutant load are found to be of a form similar to Manning's, which is valid for open channel flows. Based on the hysteresis analysis, wave types for dissolution and mixing of particulate-bound metals are identified. The analysis finds that the second-order partial-differential equation normally used for metal transport does not have the efficacy to describe fully the strong non-linear phenomena such as is described for various metal elements by dynamic waves. In addition, the proportionality concept of the popular SCS-CN concept is extended for determining the potential maximum metal mass Mp of all the 12 elements transported by a rain storm and related to the antecedent dry period (ADP). For the primary metal zinc element, Mp is found to increase with the ADP and vice versa. Copyright © 2003 John Wiley and Sons, Ltd.
Citation: Hydrological Processes (2003), 17(8): 1579-1606
Issue Date: 2003
Keywords: Heavy metals
Hysteretic transport
Mass transport
Normal mass rating curves
Overland flow
ISSN: 8856087
Author Scopus IDs: 55463271000
Author Affiliations: Mishra, S.K., National Institute of Hydrology, Roorkee 247 667, India
Sansalone, J.J., Dept. of Civil/Environmental Eng., Louisiana State University, Baton Rouge, LA 70803-6405, United States
Singh, V.P., Dept. of Civil/Environmental Eng., Louisiana State University, Baton Rouge, LA 70803-6405, United States
Corresponding Author: Mishra, S.K.; National Institute of Hydrology, Roorkee 247 667, India; email:
Appears in Collections:Journal Publications [WR]

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