COSEE Ocean Systems: News
Century-Old Science Helps Confirm Global Warming
Description: A new NASA and university analysis of ocean data collected more than 135 years ago by the crew of the HMS Challenger oceanographic expedition provides further confirmation that human activities have warmed our planet over the past century. Researchers from the University of Tasmania, Sandy Bay, Australia; and NASA's Jet Propulsion Laboratory, Pasadena, Calif., combined the ship's measurements of ocean temperatures with modern observations from the international Argo array of ocean profiling floats. They used both as inputs to state-of-the-art climate models, to get a picture of how the world's oceans have changed since the Challenger's voyage. The Challenger expedition, from 1872 to 1876, was the world's first global scientific survey of life beneath the ocean surface. Along the way, scientists measured ocean temperatures, lowering thermometers hundreds of meters deep on ropes.
URL: http://www.jpl.nasa.gov/news/news.php?release=2013-175
Availability: Summary
Source: NASA Jet Propulsion Laboratory
Publish Date: 6/7/2013
Reading Level: Basic
Page Length: 1

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