Marco Ghisalberti

Learn More
Citation Nepf, H. et al. " Retention time and dispersion associated with submerged aquatic canopies. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits(More)
Submerged aquatic vegetation can dramatically alter the drag, turbulence and diffusivity characteristics of flow in aquatic systems. As a result, the diffusion and advection of contaminants and particulates are greatly influenced. However, modeling efforts generally treat submerged vegetation merely as a source of drag. This study explores the idea that(More)
VIDEO ABSTRACT At Mistaken Point, Newfoundland, Canada, rangeomorph "fronds" dominate the earliest (579-565 million years ago) fossil communities of large (0.1 to 2 m height) multicellular benthic eukaryotes. They lived in low-flow environments, fueled by uptake [1-3] of dissolved reactants (osmotrophy). However, prokaryotes are effective osmotrophs, and(More)
Model and laboratory study of dispersion in flows with submerged vegetation. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.(More)
Aquatic flow over a submerged vegetation canopy is a ubiquitous example of flow adjacent to a permeable medium. Aquatic canopy flows, however, have two important distinguishing features. Firstly, submerged vegetation typically grows in shallow regions. Consequently, the roughness sublayer, the region where the drag length scale of the canopy is dynamically(More)
Waste stabilisation ponds (WSPs) are used worldwide for wastewater treatment, and throughout their operation require periodic sludge surveys. Sludge accumulation in WSPs can impact performance by reducing the effective volume of the pond, and altering the pond hydraulics and wastewater treatment efficiency. Traditionally, sludge heights, and thus sludge(More)
Predicting the transport of scalar species in aquatic canopies is important for understanding the physical and biological processes occuring in many aquatic environments. However, the flow and transport in canopies is quite complex and governed by a wide range of processes. This study attempts to identify the important mechanisms contributing to(More)
1 Department of Environmental Sciences, Macquarie University, North Ryde, NSW, Australia, 2 Ocean and Earth Science, National Oceanography Centre, University of Southampton, Southampton, UK, 3 Plentziako itsas Estazioa, University of the Basque Country (PiE-UPV/EHU), Plentzia-Bizkaia, Spain, 4 School of Civil, Environmental and Mining Engineering,(More)
  • 1