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Polygon patterned ground forms near Deadhorse, Alaska due to freeze-thaw cycles in the active layer above the permafrost.

Credit to Read: 
Photo by David Walker (PolarTREC 2019), Courtesy of ARCUS
Photographer: David Walker
Download: 
Image icon Download Walker_P6241224.jpg (7.28 MB)
File Information
Focal Length: 
6.2mm
File Size: 
7637385
Computed Mime: 
image/jpeg
Max Aperture: 
f/3.8
Height: 
3456
Width: 
4608
Make: 
OLYMPUS IMAGING CORP.
Model: 
SP-100EE
Exposure Time: 
1/320s
ISO: 
125
IPTC Caption: 
OLYMPUS DIGITAL CAMERA

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