Premium
SEICHE AND WATER LEVEL FLUCTUATIONS IN GRINDAVIK HARBOR, ICELAND 1, 2
Author(s) -
DONN WILLIAM L.,
WOLF DAVID M.
Publication year - 1972
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.1972.17.4.0639
Subject(s) - seiche , structural basin , water level , oceanography , tide gauge , atmospheric pressure , geology , sea level , channel (broadcasting) , climatology , hydrology (agriculture) , environmental science , atmospheric sciences , meteorology , geomorphology , geotechnical engineering , geography , engineering , cartography , electrical engineering
An IGY gauge installed in Grindavik Harbor on the southern coast of Iceland shows frequent occurrence of a seiche whose period characteristically varies between 3 and 7 min as a function of the height of the semidiurnal tide. The period of the seiche can be accounted for approximately by the application of the open basin formula T = 4 L ( gh ) −½ to a curved basin axis that includes the harbor and the entrance channel. Generation of the seiche is explained primarily as a consequence of water level increase at times of decreased atmospheric pressure and secondarily by the effect of wind direction so that water is driven into the harbor. The harbor itself responds in a way similar to an inverted barometer in response to air‐pressure changes.