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Patterned ground in Miers Valley. The polygons form when sand fills cracks in the ground that result from cycles of expansion and contraction with changing temperatures. Miers Valley, Antarctica.

Credit to Read: 
Photo by Joshua Heward (PolarTREC 2016), Courtesy of ARCUS
Photographer: Joshua Heward
Download: 
Image icon Download Heward_P1050425.jpg (6.45 MB)
Category: 
Year: 
2016
Program: 
PolarTREC
Region: 
McMurdo Station
Topic: 
File Information
Focal Length: 
3.7mm
File Size: 
6768298
Computed Mime: 
image/jpeg
Max Aperture: 
f/3.5
Height: 
2592
Width: 
4608
Make: 
OLYMPUS IMAGING CORP.
Model: 
TG-860
Exposure Time: 
1/800s
ISO: 
125
Longitude: 
0
Latitude: 
0
IPTC Caption: 
OLYMPUS DIGITAL CAMERA

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