WIT Press

Modelling Currents Along The Western Coast Of Estonia As Superposition Of Helmholtz Oscillators

Price

Free (open access)

Paper DOI

10.2495/CE990101

Volume

43

Pages

10

Published

1999

Size

891 kb

Author(s)

M. Otsmann, U. Suursaar & T. Kullas

Abstract

Both extensive field work and modelling efforts have been focused on the marine area along the western coast of Estonia in order to investigate the water exchange and environmental processes. The system of two basins connected with the open Baltic Sea by four channels has been described as superposition of five individual Helmholtz oscillators. The oscillations of currents were modelled using HIRLAM winds and open sea level data as an input. The model was verified against a 3 month-period of field measurements and continuous 2 year-long flow simulation records were obtained in all the channels. The model behaviour has been analysed in stationary and nonstationary conditions. The main forcing function for the system appeared to be the wind, sea level differ

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