The Canadian Coast Guard research vessel Amundsen is on its way back to the Arctic after spending last year in dry-dock for repairs.

The ship was launched on Friday in St. Catharines, Ont. There were significant repairs to its engines and new generators were installed.

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The Canadian Coast Guard icebreaker Amundsen clears a path through ice on the Saguenay river in 2005. The Amundsen is on its way back to the Arctic this summer after spending last year in dry-dock for repairs. (Jacques Boissinot/The Canadian Press)

A news release said it was a $6 million contract for Seaway Marine and Industrial.

"This is great news for ArcticNet," said Keith Levesque, a co-ordinator with the network of researchers studying climate change.

"It's great news for the Canadian science community and international science community that does research up in the Arctic just because the Canadian icebreaker ship Amundsen has been the flagship of Canadian Arctic Research for the past 10 years."

Levesque said the Amundsen will head to Labrador at the end of July before continuing northwest through the Arctic.

Research this summer will cover everything from phytoplankton to the atmosphere.