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High‐frequency internal waves in the littoral zone of a large lake
Author(s) -
Lorke Andreas,
Peeters Frank,
Bäuerle Erich
Publication year - 2006
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.2006.51.4.1935
Subject(s) - littoral zone , internal wave , oceanography , geology , environmental science
Observations in the littoral zone of a large lake (Lake Constance) revealed strong and periodic fluctuations of temperature and current velocity on timescales between 10 and 15 min associated with high‐frequency internal waves. The peak in the spectral energy of the current velocity fluctuations associated with high‐frequency internal waves follows the seasonal dynamics of stratification, described by the stability frequency N . A comparison between the nearshore current velocity measurements in the littoral zone with temperature measurements in the pelagic of Lake Constance revealed a strong coupling between the occurrence of high‐frequency internal waves in the littoral zone and the passage of the basin‐scale internal Kelvin wave with a period of about 4 d.