Satellites see through hurricanes!
So far this year 10 hurricanes have raged across the Atlantic – the first time that there have been so many in a row in over 100 years. Understanding how these powerful storms are formed, and predicting where they will move, is essential to saving lives. Two ESA Sentinel satellites have been helping with this mission.
Using satellites orbiting Earth to photograph hurricanes from above is useful. But the Sentinel satellites have a special trick that is even better. They are equipped with high-tech radar imaging devices to monitor levels of sea ice, track oil spills, and even see how land is changed after earthquakes. Scientists from the German Aerospace Center have created a new radar imaging technique that allows the Sentinel satellites to see through hurricanes, and image the water beneath them!
Data gathered by the Sentinels allows scientists to predict how destructive a hurricane will be, and where it might move onto land where people live. This same information can be given to sailors on ships near the hurricanes, warning them to keep clear.
The Sentinel satellites are proving themselves to be very useful tools, helping us to learn more about planet Earth, and protecting the people that live on it.
Cool fact: The two satellites used to see through hurricanes are called Sentinel-1A and 1B. They are part of a whole family of Sentinel satellites orbiting and observing Earth.