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Dr. Matthew Sturm points out remnants of a surface pond and ice wedge formed approximately 32,000 years ago. Inside the Permafrost Research Tunnel in Fox, Alaska.

Credit to read: Photo by Jacquelyn Hams (PolarTREC 2008), Courtesy of ARCUS

Photographer: Jacquelyn Hams
File Information
Focal Length: 
6.3mm
File Size: 
1305153
Computed Mime: 
image/jpeg
Max Aperture: 
f/3.3
Height: 
2112
Width: 
2816
Make: 
PENTAX Corporation
Model: 
PENTAX Optio WPi
Exposure Time: 
1/40s
ISO: 
250

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