Extreme Sea Levels from Tide and Surge Probability

This paper considers a method of deriving the probability of occurrence of extreme sea levels by combining the probability functions of surge and tide. As a result the quantity of data required is less than with traditional methods. The philosophy of the method is discussed and the conditions under which the theory can be applied are examined. Finally the technique is applied to a number of ports in the United Kingdom and the results are compared with known estimates of extreme levels.