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Encyclopedia > Frazil ice

Frazil ice is ice formed in turbulent supercooled water. In the ocean, it is a collection of loose, randomly oriented ice crystals formed below −1.8 °C. Frazil ice gives the ocean's surface a slightly oily appearance. It is the first stage in the formation of sea ice. Frozen Waterfall in the Rhön mountains A natural, 4 tonne, block of ice on a beach in Iceland Ice can refer any of the 14 known solid phases of water. ... An icebreaker navigates through young (1 year) sea ice Sea ice is formed from ocean water that freezes. ...


The accumulation of frazil ice during winter often causes flooding. As the frazil ice builds up, it begins to form into ice masses that can sometimes be found at the bottom of bodies of water. The flooding caused by frazil ice can be controled by a few methods. These include mechanical control including weirs and ice boons, thermal control, which includes radiating heat structures, and damange mitigation, which is simply promoting floods in designated flood regions.


Controlling Frazil Ice

There are several ways to control frazil ice build up. They iclude mechanical control, thermal control and damage mitigation.


Mechanical Control
->initiate insulating ice cover
->stabilize freeze without restricting water flow
->eg. weirs, ice booms

Thermal Control
->radiant heating structures
->active methods


Damage Mitigation
->promote designated flood regions with mechanical structures


GO U OF T
:)


  Results from FactBites:
 
Frazil ice - Wikipedia, the free encyclopedia (914 words)
Frazil ice is a collection of loose, randomly oriented needle-shaped ice crystals in water.
Frazil ice is the first stage in the formation of sea ice.
Ice generally floats, but due to frazil ice’s ineffective buoyancy, it can be carried to the bottom very easily.
  More results at FactBites »


 
 

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