NDLI: A method for wave spectra refraction analysis by TOPSAR polarised data

Content Provider	IEEE Xplore Digital Library
Author	Marghany, M.
Copyright Year	1999
Description	Author affiliation: Fac. of Sci. & Environ. Studies, Univ. Putra Malaysia, Malaysia (Marghany, M.)
Abstract	The refraction of waves is a phenomenon in which the energy is transferred laterally along the wave crest and it occurs when a chain of waves is interrupted by bottom topography. In case of the coastal process, the study of wave refraction is very important in understanding the erosion-sedimentation process. This paper presents work done utilizing TOPSAR polarised data to investigate the wave refraction pattern along the coastal water of Kuala Terengganu, Malaysia. For this purpose, a 2-D FFT was applied with a selective window size of 100/spl times/100 pixels and lines to represent wave spectra refraction pattern. The quasi-linear model was used to map TOPSAR wave refraction spectra into the real ocean wave spectra. Wave spectra information such as wavelength and wave directions are used to predict refraction based on Huygen's principle. The wave spectra refraction pattern from TOPSAR polarised data is compared with the results from the wave refraction model and quasi-linear model. The statistical analysis of the quasi-linear model and wave refraction spectra model shows a good correlation. It can be concluded that TOPSAR polarised data has potential for monitoring the wave spectra refraction pattern. The integration of the quasi-linear model is more useful to identify the wave spectra refraction pattern.
Starting Page	1294
Ending Page	1296
File Size	254383
Page Count	3
File Format	PDF
ISBN	0780352076
DOI	10.1109/IGARSS.1999.774609
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-06-28
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polarization Sea measurements Radar imaging Radar remote sensing Ocean waves Azimuth Surfaces Statistical analysis Electrokinetics Monitoring
Content Type	Text
Resource Type	Article

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