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The horizontal coherence of inertial oscillations in a coastal region
Author(s) -
Kindle John C.
Publication year - 1974
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl001i003p00127
Subject(s) - geodesy , coherence (philosophical gambling strategy) , inertial frame of reference , stratification (seeds) , geology , inertial wave , physics , optics , classical mechanics , wave propagation , seed dormancy , mechanical wave , longitudinal wave , germination , botany , quantum mechanics , dormancy , biology
The horizontal coherence of inertial oscillations was investigated using the records from six current meters moored on the Oregon continental shelf and whose separation distance varied from approximately 9 to 35 km. The rotary component method for analyzing vector time series was used to form the cross spectra and coherencies for 15 pairs of records, the length of which varied from 10 to 27 days. The velocity field was found to be highly coherent for periods greater than about 10 days. The coherencies at the inertial frequency, which were generally quite low, could be accounted for (with some exceptions) by a consideration of both the separation distance and a simple representation of the effects of stratification.