Contents 



Contents iii 



Preface iv 



1 — Introduction 1 



2 — Infragravity Wave Dynamics 4 



Infragravity Wave Classifications 4 



Infragravity Wave Generation Mechanisms 14 



Infragravity Waves on Nonplanar Beaches in the Presence of Longshore 



Currents 18 



3 — Infragravity Waves, Nearshore Morphology, and Sediment Transport .... 26 



4 — Field Observations 30 



Video Analysis of Runup 32 



Observations of Infragravity Waves During SAMSON and DELILAH ... 34 



5 — Summary 46 



References 48 



Appendix A: DELILAH Runup Spectra and Beach Profiles Al 



Appendix B: Photogrammetry Bl 



Appendix C: Notation CI 



SF298 



