ABSTRACT
Convective currents are thermally-driven exchange flows which are produced due to temperature difference in a fluid. In nature, this flow can be observed either between shallow and deep water or between open water and aquatic vegetation. The latter occurs due to differential surface heating or cooling between the two regions during a typical diurnal cycle. In particular, during the daytime, the vegetation prevents the solar radiation from entering into the water body and thus, the water temperature in the open area is higher. During the night-time, the vegetation reduces the temperature losses and thus, the open water cools faster. These convective currents are observed in natural lakes (Nepf & Oldham 1997, Monismith et al. 1990, Adams & Wells 1984).
