Observations of 20-day period meridional current oscillations in the upper ocean along the Pacific equator
D Halpern, RA Knox, DS Luther - Journal of Physical …, 1988 - journals.ametsoc.org
Prominent oscillations of the meridional current, with a mean period of approximately 20
days, have been observed in the upper ocean over several years from May 1979 to October
1985 using moored current measurements along the Pacific equator at 95°, 110°, 124°, 140°
W and 152° W, as well as off (but near) the equator at 110° and 140° W. The fluctuations are
relatively narrowband (±0.005 cpd) in frequency. A 95% statistically significant peak in
power spectra of meridional current occurred at 110°, 124° and 140° W, but not at 95° and …
days, have been observed in the upper ocean over several years from May 1979 to October
1985 using moored current measurements along the Pacific equator at 95°, 110°, 124°, 140°
W and 152° W, as well as off (but near) the equator at 110° and 140° W. The fluctuations are
relatively narrowband (±0.005 cpd) in frequency. A 95% statistically significant peak in
power spectra of meridional current occurred at 110°, 124° and 140° W, but not at 95° and …
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