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20-Oct-99 | Ice rivers in Antarctica

Canada’s RADARSAT, launched aboard a Delta II in 1995, has been used to generate the first high-resolution radar map of Antarctica. Among other items of interest, the map reveals what are known as “ice rivers,” vast rivers of — you guessed it — ice, which amazingly flow up to 100 times faster than the ice through which they channel. (18-Oct-99 NASA Press Release)

Meanwhile, though this author has not yet found any offical word, it seems that RADARSAT-II may have resolved (pardon the pun) its clarity issues, as it now appears in Florida Today‘s extended launch schedule for November, 2001. Previously it was reported here that the radar mapper’s ground resolution of 3 metres exceeds the clarity allowed by the U.S. government for non-military satellites by 2 metres, thus preventing it from being launched from a U.S. site.

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