NDLI: Analysis of oceanic long wave refraction at the Gulf Stream boundary using RADARSAT synthetic aperture radar during Hurricane Bonnie

Content Provider	IEEE Xplore Digital Library
Author	Xiaofeng Li Mingxia He Pichel, W.G. Kan Zeng Friedman, K.S. Clemente-Colon, P. Laibu Wang Chaofang Zhao
Copyright Year	2001
Description	Author affiliation: NOAA/NESDIS, Camp Springs, MD, USA (Xiaofeng Li)
Abstract	In this study, we analyze the Gulf Stream's effect on the refraction of ocean waves observed in data obtained from the RADARSAT synthetic aperture radar (SAR). The ocean waves observed on this SAR image have very long wavelengths and are mainly generated by Hurricane Bonnie which was located to the east of the Gulf Stream when the SAR image was taken. 256 by 256 pixel sub-images are extracted from the SAR image, and the SAR image spectrum is calculated from these sub-images. The SAR image spectrum should represent the directional ocean wave spectrum in this case, because the dominant wavelength is very long at about 400 m. A wave-current interaction model is used to simulate the wave refraction and reflection at the Gulf Stream boundary. We find that wave refraction is the dominant mechanism at the Gulf Stream boundary for these very long oceanic waves, while wave reflection is not a dominant factor. The waves turn about 15 degrees from their original direction.
Starting Page	1225
Ending Page	1227
File Size	566780
Page Count	3
File Format	PDF
ISBN	0780370317
DOI	10.1109/IGARSS.2001.976800
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-09
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Streaming media Hurricanes Synthetic aperture radar Ocean waves Sea measurements Remote sensing Optical reflection Nonlinear distortion Frequency measurement Chaos
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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