By using satellite radar ranging, it will be possible in the near future to detect disturbances on the surface of the ocean, anywhere on Earth. This will be extremely useful if it can be applied to detect tsunamis when they are still far from shore. Then there may be time to warn coastal populations, potentially saving tens of thousands of lives. Mathematical modelling of tsunamis allows us to predict the exact shape of the wave, given its speed. By correlating the shape and the speed, it may be possible to distinguish tsunamis from all of the other waves on the surface of the ocean, and so detect them. Prof Brett McInnes NUS Department of Mathematics Check out our website for more information! www.science.nus.edu.sg/your-future-here