Newly Declassified Submarine Data Will Help Study of Arctic Ice
National Science Foundation (NSF)A treasure-trove of formerly classified data on the thickness of sea ice in the Arctic Ocean, gathered by U.S. Navy submarines over several decades, is now being opened. Data from the first of approximately 20 cruise tracks -- an April, 1992 trans-Arctic Ocean track -- has just been released, and information from the rest of these tracks, or maps of a submarine's route, will be analyzed and released over the next year-and-a-half.