Wind chill factor is a measure of how quickly your body loses heat. It feels much colder. When we arrive in Punta Arenas they assign us 35 pounds of cold weather clothing. The important thing is to wear layers of clothing because the weather changes quickly. Scientist can only go on some icebergs safely.
Icebergs melt as they are moving around the ocean.
This makes them unstable. They could turtle. Meaning that it could flip over. Others could split apart or break off into smaller pieces. Some icebergs are very large.