The longevity of an iceberg and its speed while floating can vary significantly based on several factors, including the size and shape of the iceberg, environmental conditions, and the presence of currents and winds. However, I can provide some general information on the subject.
Longevity of an iceberg: The lifespan of an iceberg typically ranges from a few months to a few years. Smaller icebergs tend to melt more quickly, while larger ones can last longer. Warmer ocean temperatures, exposure to sunlight, and the presence of waves and currents contribute to the melting process. Eventually, the iceberg will continue to melt and erode until it dissipates entirely.
Speed of iceberg movement: The speed at which an iceberg moves can depend on various factors, such as ocean currents, wind, and the shape and size of the iceberg. Icebergs are typically carried along by ocean currents rather than propelled by wind. Their movement can range from a few meters per day to several kilometers per day. Larger icebergs generally move more slowly, while smaller ones can be influenced more easily by currents and winds.
It's important to note that iceberg movement is highly variable and can change significantly over time. Additionally, predicting the exact speed and lifespan of an individual iceberg is challenging due to the complex dynamics of ocean currents and weather patterns.