Pressure ridge (ice)
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A pressure ridge is a linear pile-up of sea ice fragments formed in pack ice by accumulation in the convergence between floes in an oceanic or coastal environment.
Internal structure of a first-year ice ridge with a 2 m sail height, MOSAiC expedition, July 4, 2020.
Pressure ridge at North Pole, expedition of University of Giessen, April 17, 1990
A pressure ridge in the Antarctic ice near Scott Base, with lenticular clouds in the sky.
North Pole
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The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface. It is called the True N
Pressure ridge (ice)
…waterline and the keel below. The ridge consists of broken ice blocks (rubble) and a consolidated layer, with level ice on either side. Pressure ridge at North Pole, expedition of University of Giessen, April 17, 1990 A pressure ridge in the Antarctic ice near Scott Base, with lenticular clouds in the sky. Bottom…
Temporary research station of German-Swiss expedition on the sea ice at the Geographic North Pole. Drillings at the landing site at 90°N showed an average ice thickness of 2.5 m (8 ft 2 in) on April 16, 1990
This pressure ridge at the North Pole is about 1 km (1⁄2 mi) long, formed between two ice floes of multi-year ice.
Nansen's ship Fram in the Arctic ice
Peary's sledge party at what they claimed was the North Pole, 1909. From left: Ooqueah, Ootah, Henson, Egingwah, and Seeglo.