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Surface manifestations of internal oscillations in a highly saline lake (the Dead Sea) 1
Author(s) -
Sirkes Ziv
Publication year - 1987
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.1987.32.1.0076
Subject(s) - seiche , dead sea , internal wave , geology , internal tide , atmospheric sciences , oceanography , climatology
The manifestation of internal oscillations at the surface of the Dead Sea during summer 1981 is described. During that time the Dead Sea was highly stratified, with a density difference of 1.7 × 10 −2 g liter −1 between its two layers. Measurements of lake level (limnograms) show oscillations with periods of internal seiches as confirmed by thermistor‐chain measurements as well as by a numerical model of internal oscillations. Wind measurements exhibit predominantly diurnal and semidiurnal periods. During autumn 1984 the Dead Sea turned over and its layered structure thereby destroyed. In contrast to the measurements of summer 1981 the limnograms for this timespan show only oscillations associated with periods corresponding to surface seiches, but no sign of internal oscillations.