Category:Permafrost in Alaska

Subcategories

This category has the following 4 subcategories, out of 4 total.

Media in category "Permafrost in Alaska"

The following 13 files are in this category, out of 13 total.

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  A large part of the Muldrow Glacier is covered by sediment and vegetation. The dirt and rocks fall away in some areas and expose (4ae82c2c-1a0d-403d-ba2a-d057e6965d3f).jpg 5,616 × 3,744; 16.98 MB
  
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  Alaska patterned ground 1973.jpg 2,907 × 1,932; 1.35 MB
  
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  Alaska permafrost zones.jpg 1,603 × 980; 306 KB
  
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  Barrow AK street.jpg 3,024 × 4,032; 1.78 MB
  
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  Collapsed permafrost (9356).jpg 2,000 × 1,449; 273 KB
  
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  CREEL permafrost tunnel 1987.jpg 2,760 × 1,840; 883 KB
  
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  Drilling occurred at Pretty Rocks in 2018. Core samples from the drilling indicate how much ice underlies this part of the (db7aa7dd-5660-41f2-8ced-0f001b7f2a6f).jpg 5,880 × 3,920; 2.77 MB
  
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  FEMA - 41665 - Van on a tundra road mat in Alaska.jpg 2,592 × 1,944; 815 KB
  
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  Hydraulic mining operation, Alaska, ca 1904 (NOWELL 139).jpeg 730 × 600; 100 KB
  
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  Ice wedges form underground over time and produce polygons on the tundra. The complex patterns are best seen from the air. (c5336f1c-1dd8-b71c-072d-34f5852f454e).jpg 2,950 × 1,977; 1.55 MB
  
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  Mammoth tusk in permafrost, Espenberg Beach area - DPLA - cf2b5e82c4c32c33c4e3379355181dc2.jpg 6,558 × 4,140; 4.44 MB
  
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  PATTERNED GROUND SHOWS ICE POLYGONS (LATTICE OUTLINES) AND TYPICAL SUMMER ARCTIC TUNDRA. PATTERNED GROUND, ICE... - NARA - 550392.jpg 3,000 × 2,018; 855 KB
  
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  Polygons - a sign of continous underground permafrost - show up in stark contrast against the red tundra vegetation. Variations (c4ed779a-1dd8-b71c-0786-604db8eeea9f).jpg 1,600 × 1,067; 916 KB