The most intense tropical cyclone strikes occur on the Gulf of Thailand's coast where researchers from UNT and Bangkok's Chulalongkorn University hope to determine the interval at which the cyclones occur to help with better disaster planning. Led by Harry Williams, professor of geography, the research team is identifying and dating storm surge sediment beds in the marshes to establish long-term historical records of Thailand's tropical cyclones. Current records exist only for the past 50 to 60 years.