Any relatively flat piece of sea ice 20m or more across. Floes are subdivided according to horizontal extent as follows: Giant: Over 10 km across Vast: 2-10 km across Big: 500 - 2000m across Medium: 100 - 500m across Small: 20 -100m across
a fragment or piece of a sheet of sea ice.
An accumulation of frazil flocs (also known as a "pan") or a single piece of broken ice.
Any relatively flat piece of ice 20 m or more across. It may be composed of several fragments bonded together.
A floe is a sheet of floating ice, usually found in polar seas.
separate patch of floating ice or flat sheet of unbroken pack ice, greater than 20 meters (22 yards) across.