Long waves in the equatorial Pacific Ocean
Article first published online: 3 JUN 2011
©1985. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 66, Issue 14, page 154, 2 April 1985
How to Cite
1985), Long waves in the equatorial Pacific Ocean, Eos Trans. AGU, 66(14), 154–154, doi:10.1029/EO066i014p00154., , , , , , , , , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Westward traveling waves, with a period of 3 weeks and a wavelength of ∼1000 km, are observed intermittently in the central and eastern equatorial Pacific Ocean (see cover). The waves were first detected in 1975 in satellite measurements of the sea surface temperature [Legeckis, 1977]. Since then, additional measurements (under the auspices of the NOAA program Equatorial Pacific Ocean Climate Studies (EPOCS)) with a variety of instruments—drifting buoys, current meters and temperature sensors on moorings, and inverted echo sounders—have provided considerable information about these waves and have confirmed the hypothesis that they are caused by instabilities associated primarily with the latitudinal shear of the surface currents near the equator [Philander, 1978a; Cox, 1980].