Oceans and Climates

Synopsis: In late 1982 a surge of warm water swept across the surface of the Pacific depressing the nutrient rich upwelling water of Peru and causing the already over-fished anchovy fishery to collapse completely. This natural phenomenon called El Nino by the Peruvians is one of the most intensively studied examples of ocean and climate interaction. The role of satellites and physical measurements is featured in modelling such interactions as computers. A remarkable 400-year-old coral from the Galapagos Islands suddenly lifted out of the ocean by a volcanic event is providing a living tape record of past changes in ocean temperatures and chemical fossils from sediment cores extracted from the deep ocean floor can reveal the winds sweeping off Africa thousands of years ago.
Series: S330 Videocassette 2
Language: English
Country: Great Britain
Year of production: 1989
Availability: Out of distribution
Subjects: Geography; Geology
Keywords: climate; fossils; meteorology; ocean floor; oceanography; Pacific Ocean; winds

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