© Kevin A. Geiselman

Turtle Creek, Pennsylvania, United States of America

Latitude: 40° 24' 21'' N

Longitude: 79° 49' 30'' W

02 January 2015 1452 (Local Time)

Image P/S code: P.25.2

Image I.D.: 6075

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  Needle ice

  Needle ice can form when the soil temperature is above 0 °C but the air directly above the soil is below 0 °C. Subsurface water is brought to the surface by capillary action where it freezes. As the ice grows it forms these needle-like columns. Other names for needle ice include frost pillars and frost columns.

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  © Kevin A. Geiselman
  Turtle Creek, Pennsylvania, United States of America
  Latitude: 40° 24' 21'' N
  Longitude: 79° 49' 30'' W
  02 January 2015 1452 (Local Time)
  
  
  Image P/S code: P.25.2
  Image I.D.: 6075