Abstract
The method of empirical eigenfunction analysis described by Winant et al. (1975) is applied to beach profile data from Gorleston and Great Yarmouth, Norfolk. The eigenfunction corresponding to the largest eigenvalue is the principle beach function which is closely related to the mean beach profile. The second eigenfunction is associated with significant beach changes at Gorleston and the third with small changes at Yarmouth. The profile data run from 1966 to 1976 at irregular time intervals. The analysis suggests a rather stable beach at Yarmouth, whereas the beach at Gorleston appears to have experienced a significant change during this decade. Fluctuations in the wind data for Gorleston for this period are compared with the variations in the beach profile. Some of the differences between the Yarmouth and Gorleston beaches are due to the littoral drift barrier provided by the breakwaters at the entrance to the River Yare.
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