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334418 - Pinkish red dye in water draining through a moulin.
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Pinkish red dye in water draining through a moulin.
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Pinkish red dye in water draining through a moulin.
Pinkish red dye in water draining through a moulin.
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(68°43′17″N, 49°29′45″W)
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334418
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Linder, Christopher L.
Title
Pinkish red dye in water draining through a moulin.
Pinkish red dye in water draining through a moulin.
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07/20/2008
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graphics/PD4_greenland/cl_20080720120536.jpg
Notes
Used in Oceanus magazine, Vol. 47, No. 2, Pg. 28, no caption. To detect traces of dye in the melted water flowing out to sea, Maya will use a fluorometer, a device that pumps in sea water and detects even one molecule of the fluorescent chemical dye contained in the water. "Using it is sort of like looking at certain colors through a blacklight [ultraviolet light-emitting lamps that make certain pigments glow]-they just pop out," Ian said. Today, and over the next five days, Maya will take the fluorometer a short way across a fjord near the coast in a rubber zodiac. "She's looking for any indication that the dye made it down to her," Mark said. Once detected, she will look for spikes and dips in its concentration over time. Image of The Day caption: Summertime meltwater forms lakes on Greenland's ice sheet that suddenly disappear. WHOI glaciologist Sarah Das showed why--the water's weight cracks the ice, draining to bedrock and lubricating the ice's seaward flow. In 2008 Das and colleagues investigated this unseen plumbing, pouring harmless dye into inland draining meltwater while grad student Maya Bhatia tested for dye in coastal seawater. "Knowing the speed of water flow under the ice would help us determine what sort of water system exists there," Das said. "A warming climate may cause more meltwater lakes and cracks to form, which could speed ice flow, leading to increased rates of sea level rise."
Used in Oceanus magazine, Vol. 47, No. 2, Pg. 28, no caption.
To detect traces of dye in the melted water flowing out to sea, Maya will use a fluorometer, a device that pumps in sea water and detects even one molecule of the fluorescent chemical dye contained in the water. "Using it is sort of like looking at certain colors through a blacklight [ultraviolet light-emitting lamps that make certain pigments glow]-they just pop out," Ian said. Today, and over the next five days, Maya will take the fluorometer a short way across a fjord near the coast in a rubber zodiac. "She's looking for any indication that the dye made it down to her," Mark said. Once detected, she will look for spikes and dips in its concentration over time.
Image of The Day caption:
Summertime meltwater forms lakes on Greenland's ice sheet that suddenly disappear. WHOI glaciologist Sarah Das showed why--the water's weight cracks the ice, draining to bedrock and lubricating the ice's seaward flow. In 2008 Das and colleagues investigated this unseen plumbing, pouring harmless dye into inland draining meltwater while grad student Maya Bhatia tested for dye in coastal seawater. "Knowing the speed of water flow under the ice would help us determine what sort of water system exists there," Das said. "A warming climate may cause more meltwater lakes and cracks to form, which could speed ice flow, leading to increased rates of sea level rise."
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© Woods Hole Oceanographic Institution
©Shane Gross/Greenpeace
Adobe Farmhouse Photography
Getty Images/iStockphoto
Illustration by Eric S. Taylor, WHOI Creative
Illustration by Jack Cook
Illustration by Jayne Doucette
Illustration by Natalie Renier, WHOI Creative
Marine Imaging Technologies, LLC © Woods Hole Oceanographic Institution
Photo by Amy Apprill
Photo by Craig LaPlante
Photo by Daniel Hentz
Photo by Danielle Fino
Photo by Darlene Trew Crist
Photo by Elise Hugus
Photo by Hannah Piecuch
Photo by Jayne Doucette
photo by Jeff Yonover
Photo by Katherine Spencer Joyce
Photo by Ken Kostel
Photo by Marley L. Parker
Photo by Matthew Barton
Photo by ML Parker
Photo by Rebecca Travis
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Photo by Tina Thomas
Photo by Tom Kleindinst
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Photo courtesy of Woods Hole Oceanographic Institution Archives
Photographie : @alexis.rosenfeld
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Video by Craig LaPlante
Video by Danielle Fino
Video by Hannah Piecuch
Video by Jayne Doucette
Video by Ken Kostel
Video by Matthew Barton
-- Other --
Photo by Chris Linder
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@2021 Woods Hole Oceanographic Institution, all rights reserved
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Copyright (c) 2012 Vanderhaegen Bart
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Copyright 2002
Copyright 2007 Jeff Yonover
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Image courtesy of NOAA Ocean Exploration, Deep Connections 2019.
Jeff Yonover 2015
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NautilusLive/Ocean Exploration Trust
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Photo by Chris Linder, WHOI
Rachael Talibart 2016
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-- Other --
© Woods Hole Oceanographic Institution
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graphics/PD4_greenland/cl_20080720120536.jpg
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jdoucette
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2008-12-02 00:00:00
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jcanavan: Oceanus magazine, Vol. 47, No. 2, Pg. 28 tsilva: MIT Museum Project mkurz: Presentation jdoucette: Image of The Day, 05/14/2011
jcanavan: Oceanus magazine, Vol. 47, No. 2, Pg. 28
tsilva: MIT Museum Project
mkurz: Presentation
jdoucette: Image of The Day, 05/14/2011
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Greenland Ice Sheet
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Das, Sarah B
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