Field study on currents in a shallow, ice-covered lake

Malm, Joakin, Lars Bengtsson, Arkady Terzhevik, Pjotr Boyarinov, Alexander Glinsky, Nikolaj Palshin, Michail Petrov

Limnol. Oceanogr., 43(7), 1998, 1669-1679 | DOI: 10.4319/lo.1998.43.7.1669

ABSTRACT: A field study on current structure and circulation characteristics in Lake Vendyurskoe, a small, shallow, icecovered lake in Karelia, Russia, is presented. The current velocity magnitudes were generally found to be small. The most pronounced currents had an oscillating character, with velocity amplitudes on the order of millimeters per second. The oscillation period, obtained from spectral density calculations, corresponded to that of a barotropic uninodal seiche. The seichelike nature of the current oscillations was supported by the results from analysis of icelevel fluctuations, giving identical periods and a phase shift of one-fourth the period between the two types of oscillations.

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