Shoaling of nonlinear internal waves in Massachusetts Bay
Beardsley, Robert C.
MetadataShow full item record
The shoaling of the nonlinear internal tide in Massachusetts Bay is studied with a fully nonlinear and nonhydrostatic model. The results are compared with current and temperature observations obtained during the August 1998 Massachusetts Bay Internal Wave Experiment and observations from a shorter experiment which took place in September 2001. The model shows how the approaching nonlinear undular bore interacts strongly with a shoaling bottom, offshore of where KdV theory predicts polarity switching should occur. It is shown that the shoaling process is dominated by nonlinearity, and the model results are interpreted with the aid of a two-layer nonlinear but hydrostatic model. After interacting with the shoaling bottom, the undular bore emerges on the shallow shelf inshore of the 30-m isobath as a nonlinear internal tide with a range of possible shapes, all of which are found in the available observational record.
Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 113 (2008): C08031, doi:10.1029/2008JC004726.
Suggested CitationJournal of Geophysical Research 113 (2008): C08031
Showing items related by title, author, creator and subject.
Shoaling of large-amplitude nonlinear internal waves at Dongsha Atoll in the northern South China Sea Fu, Ke-Hsien; Wang, YuHuai; St. Laurent, Louis C.; Simmons, Harper L.; Wang, Wang (2012-02-10)Shoaling of large-amplitude (~100 m) nonlinear internal waves over a steep slope (~3°) in water depths between 100 m and 285 m near Dongsha Atoll in the northern South China Sea is examined with an intensive array of ...
Whales and waves : humpback whale foraging response and the shoaling of internal waves at Stellwagen Bank Pineda, Jesus; Starczak, Victoria R.; da Silva, Jose C. B.; Helfrich, Karl R.; Thompson, Michael A.; Wiley, David N. (John Wiley & Sons, 2015-04-02)We tested the hypothesis that humpback whales aggregate at the southern flank of Stellwagen Bank (SB) in response to internal waves (IWs) generated semidiurnally at Race Point (RP) channel because of the presence of their ...
Richards, Clark G.; Bourgault, Daniel; Galbraith, Peter S.; Hay, Alex; Kelley, Daniel E. (John Wiley & Sons, 2013-01-30)The shoaling of horizontally propagating internal waves may represent an important source of mixing and transport in estuaries and coastal seas. Including such effects in numerical models demands improvements in the ...