2014年6月11日水曜日

In June : Icebergs spotted on Lake Superior

There’s never been so much this late in the year, in 40 years of records.


Great Lake
June 5, 2014

Washington Post

It’s the ice on Lake Superior and  there’s never been so much this late in the year, in 40 years of records.


          NOAA

“There’s still about 0.6 percent [ice cover] on Lake Superior, and that’s around Marquette and Keewanah Bay,” said George Leshkevich, physical scientist at NOAA’s Great Lakes Environmental Research Laboratory.

“We haven’t seen this before, at least this far into June.”

Other years have had ice deep into the spring, but nothing to rival this year. For example, Leshkevich said fractional percentages of ice were observed on May 29 in 1996 and 2003;in 1979, 7.5 percent ice cover remained on the lake on May 14, but no data on how long it lasted.



In early March this year, the Great Lakes ice extent reached 92.5%, the second most on record for any month, surpassed only by 94.7% in February 1979.

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