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Tundra polygons formed because of the freeze-thaw cycle that occurs in permafrost areas. You can see the patterns of polygons and ponds.

Credit to read: Photo by Leslie Pierce (TREC 2005), Courtesy of ARCUS

Photographer: Leslie Pierce
Category: 
Year: 
2005
Program: 
TREC
Region: 
North Slope, Alaska
Topic: 
File Information
Focal Length: 
5.6mm
File Size: 
395960
Computed Mime: 
image/jpeg
Max Aperture: 
f/4.5
Height: 
1200
Width: 
1600
Make: 
NIKON
Model: 
E3500
Exposure Time: 
1/349s
ISO: 
100

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