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Earth Matters

Up Close with the Plume in the Strait of Georgia

January 12th, 2015 by Kathryn Hansen

Last week, an Earth Observatory Image of the Day featured a sediment plume from the Fraser River where it enters the Strait of Georgia. That photograph was taken by an astronaut on the International Space Station on September 6, 2014. After we posted the image on Facebook, researcher Ed Wiebe responded by sharing some close-up views of the plume.

Strait-of-Georgia_Bartlett3

The photo above was taken by Kevin Bartlett of Ocean Networks Canada on May 4, 2013, from the deck of the Canadian Coast Guard research ship John P. Tully during an expedition in the Strait. According to Bartlett, the photo was taken during operations with a remotely operated vehicle (ROV), so the location would have been over the central or east node of the VENUS undersea network.

front between Fraser River water and Straight of Georgia water

Wiebe, who works at the University of Victoria, shot the second photo from the deck of a ferry in May 2007. According to Wiebe’s Facebook post: “The spring flood brings very intense loading of the surface water with sharp boundaries. The ferry between Vancouver Island and Vancouver crosses this boundary, providing a great opportunity to observe the river outflow floating on top of the saline water in the Strait of Georgia.”

Thanks to Ed and Kevin for sharing these terrific images!

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