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It has been suggested that the presence of frazil ice (soft or amorphous ice formed by the accumulation of ice crystals in water that is too turbulent to freeze solid) can lead to a conditional instability in seawater. Any frazil forming in the water column reduces the bulk density of a parcel of frazil-seawater mixture, causing it to rise. As a result of the pressure decrease in the freezing point, this causes more frazil to form, causing the parcel to accelerate, and so on. This study uses linear stability analysis and a nonhydrostatic ocean model to study this instability. [Source: Journal of Physical Oceanography]
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