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Equatorial Pacific Front (STS-26-040-082)
02 October 1988, 4.8°N, 129.2° W

The feature of primary interest in the Equatorial Pacific is the equatorial front, the boundary between the surface waters that have been warmed by the sun and the cool, recently upwelled waters. The equatorial front, seen in this STS-26 photo, will appear in the sunglint pattern as a linear feature oriented more-or-less north to south, between the equator and 5° N and between the Galapagos Islands west to the dateline (180° W). For reasons presently unknown, similar features have not been observed south of the equator, although they may certainly exist.

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