This work was supported by ONR (N00014-90-J-1285, N00014-02-1-0855). I also thank E. Lane, J. McWilliams, J. Restrepo, J. S. Allen, P. A. Newberger, F. Ardhuin, S. Monismith, S. Henderson, and many others for useful discussions and suggestions.
Battjes, J. A., , H. J. Bakkenes, , T. T. Janssen, , and A. R. van Dongeren, 2004: Shoaling of subharmonic gravity waves. J. Geophys. Res., 109 .C02009, doi:10.1029/2003JC001863.
Bretherton, F. P., , and C. J. R. Garrett, 1968: Wave trains in inhomogeneous moving media. Proc. Roy. Soc. London, A302 , 539–554.
Groeneweg, J., , and G. Klopman, 1998: Changes of the mean velocity profiles in the combined wave–current motion described in a GLM formulation. J. Fluid Mech., 370 , 271–296.
Hasselmann, K., 1971: On the mass and momentum transfer between short gravity waves and larger-scale motions. J. Fluid Mech., 50 , 189–205.
Herbers, T. H. C., , and R. T. Guza, 1991: Wind-wave nonlinearity observed at the sea floor. Part I: Forced-wave energy. J. Phys. Oceanogr., 21 , 1740–1761.
Herbers, T. H. C., , S. Elgar, , and R. T. Guza, 1994: Infragravity-frequency (0.005–0.05 Hz) motions on the shelf. Part I: Forced waves. J. Phys. Oceanogr., 24 , 917–927.
Herbers, T. H. C., , S. Elgar, , N. A. Sarap, , and R. T. Guza, 2002: Nonlinear dispersion of surface gravity waves in shallow water. J. Phys. Oceanogr., 32 , 1181–1193.
Janssen, T. T., , J. A. Battjes, , and A. R. van Dongeren, 2003: Long waves induced by short-wave groups over a sloping bottom. J. Geophys. Res., 108 .3252, doi:10.1029/2002JC001515.
Jiang, J-Y., , and R. L. Street, 1991: Modulated flows beneath wind-ruffled, mechanically generated water waves. J. Geophys. Res., 96 , 2711–2721.
Kemp, P. H., , and R. R. Simons, 1982: The interaction of waves and a turbulent current; waves propagating with the current. J. Fluid Mech., 116 , 227–250.
Kemp, P. H., , and R. R. Simons, 1983: The interaction of waves and a turbulent current; waves propagating against the current. J. Fluid Mech., 130 , 73–89.
Leibovich, S., , and A. Tandon, 1993: Three-dimensional Langmuir circulation instability in a stratified layer. J. Geophys. Res., 98 , 16501–16507.
Li, M., , K. Zahariev, , and C. Garrett, 1995: Role of Langmuir circulation in the deepening of the ocean surface mixed layer. Science, 270 , 1955–1957.
Longuet-Higgins, M. S., 1970a: Longshore currents generated by obliquely incident sea waves. Part 1. J. Geophys. Res., 75 , 6778–6789.
Longuet-Higgins, M. S., 1970b: Longshore currents generated by obliquely incident sea waves. Part 2. J. Geophys. Res., 75 , 6790–6801.
Longuet-Higgins, M. S., , and R. W. Stewart, 1960: Changes in the form of short gravity waves on long waves and tidal currents. J. Fluid Mech., 8 , 565–583.
Longuet-Higgins, M. S., , and R. W. Stewart, 1961: The changes in amplitude of short gravity waves on steady non-uniform currents. J. Fluid Mech., 10 , 529–549.
Longuet-Higgins, M. S., , and R. W. Stewart, 1962: Radiation stress and mass transport in gravity waves, with application to “surf-beats.”. J. Fluid Mech., 13 , 481–504.
Longuet-Higgins, M. S., , and R. W. Stewart, 1964: Radiation stress in water waves; a physical discussion, with applications. Deep-Sea Res. Oceanogr. Abstr., 11 , 529–562.
McWilliams, J. C., , J. M. Restrepo, , and E. M. Lane, 2004: An asymptotic theory for the interaction of waves and currents in coastal waters. J. Fluid Mech., 511 , 135–178.
Phillips, O. M., 1977: The Dynamics of the Upper Ocean. Vol. 2, Cambridge Monographs on Mechanics and Applied Mathematics, 2d ed. Cambridge University Press, 336 pp.
Skyllingstad, E. D., , and D. W. Denbo, 1995: An ocean large-eddy simulation of Langmuir circulations and convection in the surface mixed layer. J. Geophys. Res., 100 , 8501–8522.
Smith, J. A., 1980: Waves, currents, and Langmuir circulation. Ph.D. thesis, Dalhousie University, 242 pp.
Smith, J. A., 1990: Modulation of short wind waves by long waves. Surface Waves and Fluxes: Current Theory and Remote Sensing, G. L. Geernaert and W. J. Plant, Eds., Kluwer Academic, 247–284.
Smith, J. A., 2006: Observed variability of ocean wave Stokes drift, and the Eulerian response to passing groups. J. Phys. Oceanogr., 36 , 1381–1402.