Cold facts update: Great Lakes ice cover is growing fast

  • 主题发起人 主题发起人 guest
  • 开始时间 开始时间

guest

Moderator
管理成员
注册
2002-10-07
消息
402,179
荣誉分数
76
声望点数
0
Winter is upon us and the cold is here to last, with double-digit negative temperatures forecast for the next week. Is there a bright side to any of this? Not really. But we offer the tiniest of silver linings! To accompany this cold snap, we’re running a short-term daily feature: Cold Facts.

It’s only been a week since we reported that 9.4 per cent of the Great Lakes had frozen over — a fast start, considering that some years they don’t freeze much at all.

One week later that has jumped to 22.7 per cent. That’s more than 55,000 square kilometres of ice, or nearly one-quarter of the lakes’ combined surface area, mostly along shorelines and in bays. It includes part of the section of Lake Superior separating the mainland from Isle Royale National Park, home of an isolated wolf pack that will die out without new wolves from the mainland. Not all of this ice is solid enough to walk on yet, but more Arctic air will be here through Saturday.


Grey and black are frozen areas. Source: U.S. National Oceanic and Atmospheric Administration


tspears@postmedia.com

twitter.com/TomSpears1







b.gif


查看原文...
 
后退
顶部