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ISEIS Accurately Predicts Sea Level Rise

Sea level height at the Tai Po Kau tidal gauge station on 16 September
Sea level rise in Hong Kong coastal water on 16 September

Supported by the Innovation and Technology Fund, Prof. Pan Jiayi of the Institute of Space and Earth Information Science (ISEIS) and his research group have developed a new storm surge prediction system that can make predictions about the dynamics of the marine environment of Hong Kong’s coastal water. The system generated highly precise forecasts on the rise in sea level when Typhoon Kalmaegi hit Hong Kong in September. The prediction results were consistent with the observation data of the Hong Kong Observatory.

The accuracy of the forecast on storm surge caused by Typhoon Kalmaegi is higher than 80%, better than that by the American Sea, Lake, and Overland Surges from Hurricanes (SLOSH) system as well as the Japan Meteorological Agency (JMA) system. The storm surge forecast system can predict the absolute sea level rise caused by the typhoon by offsetting the height of the tidal sea level.

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