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Gas samples are withdrawn from the enclosed space between the collar and cap right after the cap is put on, and again after 20 minutes. The two samples are then analyzed to determine the change in gas composition over time (the flux). Petsikko wetland, south of Kevo Research Station, Finland.

Credit to Read: 
Photo by Abby Miller, Courtesy of Carol Scott (PolarTREC 2013), Courtesy of ARCUS
Photographer: Abby Miller
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Year: 
2013
Program: 
PolarTREC
Region: 
Finland
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