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Deep-Sea Tides 1250 Kilometers off Baja California
New Series, Vol. 169, No. 3948 (Aug. 28, 1970), pp. 862-864
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1729736
Page Count: 3
You can always find the topics here!Topics: Ocean tides, Biological rhythms, Transfer functions, Signal noise, Ocean floor, Amplitude, Tidal waves, Kelvin waves, Noise spectra, Oceanography
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The tidal pressure fluctuations on the sea floor were read by a sensitive optical sensor that detects the rotations of a multiturn Bourdon helix. The record was analyzed in terms of the transfer functions between tidal elevations and gravitational driving. Off California, the semidiurnal tide attenuates considerably faster than the diurnal tide. Neither species satisfies the rate of decay expected from a Kelvin wave.
Science © 1970 American Association for the Advancement of Science