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Sarah Das pouring dye into flowing water.

Sarah Das pouring dye into flowing water.
Sarah Das pouring dye into flowing water.
Sarah Das pouring dye into flowing water.
Sarah Das pouring dye into flowing water.
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(68°43′17″N, 49°29′35″W)
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334416
Linder, Christopher L.
Sarah Das pouring dye into flowing water.
Still Image
07/20/2008
graphics/PD4_greenland/cl_20080720114715.jpg
Dye spreading in the water created a startling effect ("like 50 pigs had been slaughtered," Mark said). When the dye reached the moulin downstream, about 4 minutes after it was dumped, it diluted into a bright pink shade. And by the time it (hopefully) reaches Sarah's graduate student Maya Bhatia and her colleagues, working 40 kilometers west of us on the coast of Greenland, Sarah anticipates that it will no longer be visible to the naked eye.
Caption from Oceanus magazine, Vol. 47, No. 2, Front Cover:
WHOI glaciologist Sarah Das dumps harmless red dye into a stream atop the Greenland ice sheet in an experiment. She sought to track how water flows through cracks in the ice to the bottom of glaciers and out to the ocean. See story on Page 24.
Image of The Day caption:
In July 2008, researchers from WHOI and the University of Washington spread a harmless red dye into the meltwater on top of the Greenland ice sheet. The team was able to examine the flow at the surface and down into a moulin?a massive vertical tunnel through the ice, stretching to the bottom of the glacier. But more importantly, the team was trying to track how long it would take before the dyed water would flow through and beneath the ice in the interior of Greenland and out into coastal waters (40 kilometers away).
Photo by Chris Linder
© Woods Hole Oceanographic Institution
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