Reflection and tunneling of ocean waves observed at a submarine canyon
MetadataShow full item record
Ocean surface gravity waves with periods between 20 and 200 s were observed to reflect from a steep-walled submarine canyon. Observations of pressure and velocity on each side of the canyon were decomposed into incident waves arriving from distant sources, waves reflected by the canyon, and waves transmitted across the canyon. The observed reflection is consistent with longwave theory, and distinguishes between cases of normal and oblique angles of incidence. As much as 60% of the energy of waves approaching the canyon normal to its axis was reflected, except for waves twice as long as the canyon width, which were transmitted across with no reflection. Although waves approaching the canyon at oblique angles cannot propagate over the canyon, total reflection was observed only at frequencies higher than 20 mHz, with lower frequency energy partially transmitted across, analogous to the quantum tunneling of a free particle through a classically impenetrable barrier.
Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 32 (2005): L10602, doi:10.1029/2005GL022834.
Suggested CitationGeophysical Research Letters 32 (2005): L10602
Showing items related by title, author, creator and subject.
Seismic reflection, magnetic, and gravity profiles of the eastern Atlantic continental margin and adjacent deep-sea floor. II. Congo Canyon (Republic of Zaire) to Lisbon (Portugal) Uchupi, Elazar; Emery, Kenneth O. (Woods Hole Oceanographic Institution, 1974-04)One of the programs of the International Decade of Ocean Exploration (I.D.O.E.) is a geological and geophysical study of the eastern Atlantic continental margin and adjacent deep-sea floor. This report is a compilation of ...
Seismic reflection, magnetic, and gravity profiles of the eastern Atlantic continental margin and adjacent deep-sea floor. I. Cape Francis (South Africa) to Congo Canyon (Republic of Zaire) Uchupi, Elazar; Emery, Kenneth O. (Woods Hole Oceanographic Institution, 1972-12)One of the programs of the International Decade of Ocean Exploration (!DOE) is a four-year geophysical and geological study of the Eastern Atlantic Continental Margin and the adjacent deep·sea floor. It was designed to ...
Thomson, James M.; Elgar, Steve; Herbers, T. H. C.; Raubenheimer, Britt; Guza, R. T. (American Geophysical Union, 2007-10-10)The propagation of infragravity waves (ocean surface waves with periods from 20 to 200 s) over complex inner shelf (water depths from about 3 to 50 m) bathymetry is investigated with field observations from the southern ...