Editing Antarctic Sea Ice Extent (Monthly) (section)

== Boundary Conditions ==
Boundary inclusions encompass all contiguous sea ice-covered areas around Antarctica where sea ice concentration meets or exceeds the standard threshold (e.g., 15%). This includes seasonal and perennial ice, coastal ice shelves, and polynyas with significant ice presence. Boundary exclusions omit open ocean areas without sufficient ice concentration, transient ice floes below detection thresholds, and regions outside the Southern Ocean's defined maritime domain. Areas of landfast ice attached to the continent may be included if they meet concentration criteria, while icebergs and glacial ice not classified as sea ice are excluded.