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Tundra polygons on Alaska's North Slope are formed because of the freeze-thaw cycle that occurs in permafrost areas.

Credit to read: Photo by Laurie Carr (TREC 2004), Courtesy of ARCUS

Photographer: Laurie Carr
Download: 
Image icon Download Img0492.JPG (926.18 KB)
Category: 
Year: 
2004
Program: 
TREC
Region: 
North Slope, Alaska
Topic: 
File Information
Focal Length: 
5.6mm
File Size: 
948413
Computed Mime: 
image/jpeg
Max Aperture: 
f/4.5
Height: 
1536
Width: 
2048
Make: 
NIKON
Model: 
E3500
Exposure Time: 
1/493s
ISO: 
100

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