What happens to icebergs in sea state 7?
Short answerIt depends on the iceberg and conditions. Cold can preserve the ice, while rough salt water can erode it and break it into smaller pieces.
NotesMost of an iceberg lies below the surface whatever the sea state. Cold conditions can keep it from melting, but heavy seas and salt water still act on the exposed ice. Erosion can break a large iceberg into many smaller pieces. Its behavior in sea state 7 therefore depends on the particular iceberg and the conditions around it.