From 2000 - 2010, 40% More Cyclones Than Thought Moved Through Arctic - 1,900 In All
In the decade between 2000 and 2010 about 1,900 cyclones churned through the Arctic, scientists report, noting that total to be about 40 percent more than previously believed.
While it may be easy to jump to conclusions about global climate change playing a role in the increase, these high-latitude cyclones have increased largely because scientists have gotten better at detecting them, according to David Bromwich, a geography professor at The Ohio State University, who presented the research this week in San Francisco at the 46th Annual Fall Meeting of the American Geophysical Union.
These "new" cyclones were generally smaller, of shorter duration and occurred in unpopulated areas, which made them more difficult to detect. But as the technology to detect these low-pressure systems improves, it becomes easier for scientists to spot them.
"We now know there were more cyclones than previously thought, simply because we've gotten better at detecting them," Bromwich said. Studying these smaller storms will help researchers gain a better understanding of overall storm trends in the Arctic.
EDIT
http://www.natureworldnews.com/articles/5275/20131211/decade-arctic-saw-40-percent-more-cyclones-previously-believed.htm