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An ice wedge forms as water freezes further and further down into the ground. Cracks open on the top of the surface, especially during the summer, more water seeps in, freezes, and causes the wedge to push out further. In this photo, you can see the dirty ice in the top half of the photo. There is a thin line of white frost where the ice meets the soil. Barrow, Alaska.

Credit to read: Photo by Frank Kelley (PolarTREC 2008), Courtesy of ARCUS

Photographer: Frank Kelley
Category: 
Year: 
2008
Program: 
PolarTREC
Region: 
North Slope, Alaska
Topic: 
File Information
Focal Length: 
6.3mm
File Size: 
2724566
Computed Mime: 
image/jpeg
Max Aperture: 
f/3.3
Height: 
2304
Width: 
3072
Make: 
PENTAX Corporation
Model: 
PENTAX Optio W30
Exposure Time: 
1/50s
ISO: 
400

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