Physical dispersion and dilution of ballast water discharge in the St. Clair River: implications for biological invasions.
作者： Yajun Sun , Mathew G. Wells , Sarah A. Bailey , Eric J. Anderson
DOI: 10.1002/WRCR.20201
关键词: Water discharge 、 Peak concentration 、 Mixing (physics) 、 Context (language use) 、 Ballast 、 Dispersion (water waves) 、 Atmospheric sciences 、 Submarine pipeline 、 Hydrology 、 Environmental science 、 Dilution
摘要: m 2 s � 1 and a transverse dispersion coefficient Ky 0.5 . The marked difference between Kx resulted in limited mixing, implying that any nearshore BWD is unlikely to reach the opposite bank wide St. Clair River within its total length (� 60 km). peak concentration Cp showed power-law decay over time t as / b was close 1, consistent with Fickian diffusion model. Compared offshore trials, trials were characterized by significantly slower travel speeds, because of velocity shear across channel. This first field study on mixing context biological invasions river large enough reveal considerable differences These findings shed light management contaminant spills.
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