NET PICS: Sea Change

Science  19 Jun 1998:
Vol. 280, Issue 5371, pp. 1807
DOI: 10.1126/science.280.5371.1807c

Even as this past year's El Niño continues its fadeaway, true fans can relive the excitement at the Web site for the U.S.-French altimetry satellite TOPEX/Poseidon (topex-www.jpl.nasa.gov). Along with still images like this one from November, when the temperature of the tropical Pacific warming phenomenon peaked, the site holds a series of Web movies based on data compiled from December 1996 through last March. Only the outlines of immutable continents stay fixed as colors representing sea level, an indicator of ocean temperature, writhe in climatic flux. (In the November image, the highest—therefore warmest—regions are red and white.) A few clicks away, the data-addicted savvy will find hundreds of global images (updated every few hours) on everything from water vapor concentration to wind speed, as well as links to related sites.

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