In 1964, the Beatles took the world by storm, Lyndon Johnson won the presidential election—and NASA launched the first of seven Nimbus spacecraft to study Earth from space. Fifty years later, experts at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder are recovering long-lost images from old Nimbus data tapes and black and white film, and finding treasures in the pictures. “By extending the satellite record back to the 1960s, we can understand more about the history and natural variability in things like sea ice extent in the Arctic, and the Antarctic,” said David Gallaher, technical services manager at NSIDC. The modern satellite record of sea ice goes back only to 1979.
Posted on: Sun, 21 Sep 2014 14:13:22 +0000
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