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Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis |
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| Authors: | Zi Wu Zhi Li Li Zeng Ling Shao Hansong Tang Qing Yang and Guoqian Chen |
| Institution: | (1) Dipartimento di Ingegneria Idraulica, Ambientale, Infrastrutture Viarie, Rilevamento, Politecnico di Milano Piazza Leonardo da Vinci 32, 20133 Milan, Italy;(2) US Geological Survey, Office of Groundwater, 411, National Center Reston, Arlington, VA 20192, USA;(3) U.S. Geological Survey, Florida Integrated Science Center, 3110 SW 9th Avenue, Fort Lauderdale, FL 33315, USA |
| Abstract: | Distinct from the case with width-dominated shallow wetland flows, the longitudinal evolution of contaminant concentration in the most-typical pattern of wetland as dominated by free-water-surface-effect is characterized by a multi-scale analysis in the present study. An environmental dispersion model for the evolution of the mean concentration is deduced as an extension of Taylor’s classical formulation by Mei’s multi-scale analysis. Corresponding environmental dispersivity is found identical to that determined by the method of concentration moments. |
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