Long Waves in the Eastern Equatorial Pacific Ocean: A View from a Geostationary Satellite

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Science  16 Sep 1977:
Vol. 197, Issue 4309, pp. 1179-1181
DOI: 10.1126/science.197.4309.1179


During 1975, westward-moving long waves with a period of about 25 days and a wavelength of 1000 kilometers were observed at a sea surface temperature front in the equatorial Pacific on infrared images obtained by a geostationary environmental satellite system. The absence of these waves during 1976, and the above-average equatorial sea surface temperatures during 1976, may be related to a decrease in the southeasterly trade winds during that year.

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