Premium
Surface seiches in lakes of complex geometry
Author(s) -
Rueda Francisco J.,
Schladow S. Geoffrey
Publication year - 2002
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.2002.47.3.0906
Subject(s) - seiche , geology , geometry , hydrology (agriculture) , surface (topology) , structural basin , geomorphology , oceanography , geotechnical engineering , mathematics
In lakes of small to medium size, the characteristic frequencies of free oscillations of the water surface (seiches) depend only on the basin geometry. In irregularly shaped basins, such as dendritic reservoirs and multibasin lakes, these characteristic frequencies are not easily determined with simple formulas. Clear Lake, a multibasin lake in Northern California, is presented here as a case in point. The signature of the seiches in Clear Lake were only revealed after solving the eigenvalue problem governing the structure and frequency of seiches derived from the linear and frictionless depth‐averaged shallow water equations in a nonrotating frame.