Satellite observation of a zipper-like internal wave-wave interaction pattern in the Mid-Atlantic Bight

Jingshuang Xue, Hans C. Graber, Björn Lund, Roland Romeiser

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

On a SPOT-4 panchromatic image of the Mid-Atlantic Bight, a zipper-like pattern is observed due to the nonlinear internal wave-wave interaction process. The pre-interaction and post-interaction angles are measured approximately and, respectively. The length of merged fronts in the interaction zone decreases from front to rear. It indicates a fundamentally unsteady interaction. The brightness of the post-interaction waves is much weaker than the pre-interaction waves, which implies much smaller wave amplitudes. The brightness of merged fronts is much stronger, which implies larger wave amplitudes. These characteristics qualitatively agree well with numerical results of Mach interaction of large amplitude waves by Tanaka [4]. The exceptionally large amplitudes in the interaction zone may pose threats to underwater structures.

Original languageEnglish (US)
Title of host publication2013 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013 - Proceedings
Pages1571-1574
Number of pages4
DOIs
StatePublished - Dec 1 2013
Event2013 33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013 - Melbourne, VIC, Australia
Duration: Jul 21 2013Jul 26 2013

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other2013 33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013
CountryAustralia
CityMelbourne, VIC
Period7/21/137/26/13

Keywords

  • Amplitude changes
  • Mach interaction
  • SPOT image
  • phase shifts

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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