sediment transport. The frequency band, its wave content, and theorized gen- 

 eration mechanisms will be introduced. Field studies that address these 

 issues and demonstrate the relative contribution of infragravity energy to the 

 nearshore, and its role in sediment transport and sandbar generation will be 

 examined. A discussion of future research needs will follow. In Appendix A 

 an annotated bibliography is included to further serve the reader, and in 

 Appendix B symbols and abbreviations are listed and identified. 



