Abstract
In coastal waters, radar signatures are generated by hydro- dynamic interactions of the tidal current with the variable bottom topography. The analysis of radar signatures is performed in order to detect changes in the bathymetry.
A nautical X-band radar was mounted on the island of Sylt in the German Bight in the period from February to June 1997, and from December 1998 to April 1999. The observed area is of high interest because morphological changes, altering the flood stream situation, have taken place in recent years and are still in progress. The radar signatures altered in a noticeable way between the two observation periods.
The image sequences were analyzed using basic statistical methods. In addition, the structure tensor method was used to indicate the orientation of the signatures linked with the bottom slopes. The tidal variability of the radar signatures was determined by an EOF (Empirical Orthogonal Function) analysis.
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References
R. Soulsby, “Dynamics of Marine Sands”, Thomas Telford Publications, 1997.
P.H.Y. Lee, J.D. Baxter, K.L. Beach, C.L. Hindman, B.M. Lake, H. Rungaldier, J.C. Shelton, A.B. Williams, R. Yee, and H.C. Yuen, “X Band Microwave Backscattering from Ocean Waves”, J. Geophys. Res., 100, 2591–2611, 1995.
W. Alpers, and I. Hennings, “A Theory of the Imaging Mechanism of Underwater Bottom Topography by Real and Synthetic Aperture Radar”, J. Geophys. Res., 89, 10529–10546, 1984.
I. Hennings, “Abbildung von submariner Bodentopography auf Luft- und Satelliten-bildern im Mikrowellenbereich und im sichtbaren Bereich des elektromagnetischen Spektrums”, PhD thesis, University of Bremen, GKSS report 88/E/41, 1988 (in German).
J. Vogelzang, G.J. Wensink, C.J. Calkoen, and M.W.A. Van der Kooij, “Mapping Submarine Sand Waves with Multiband Imaging Radar”, J. Geophys. Res., 102, 1163–1192, 1997.
J. Croney, “Civil Marine Radar”, in: M.I. Skolnik (Ed.): Radar Handbook, Chapter 31, 1970.
I.R. Young, W. Rosenthal, and F. Ziemer, “A Three-Dimensional Analysis of Marine Radar Images for the Determination of Ocean Wave Directionality and Surface Currents”, J. Geophys. Res., 90, 1049–1059, 1985.
I.R. Young, W. Rosenthal, and F. Ziemer, “A Three-Dimensional Analysis of Marine Radar Images for the Determination of Ocean Wave Directionality and Surface Currents”, J. Geophys. Res., 90, 1049–1059, 1985.
J.W. Goodman, “Some Fundamental Properties of Speckle”, J. Opt. Soc. Amer., 66, 1145–1150, 1976.
Jahne, B., “Image Processing for Scientific Applications”, CRC Press, 1997.
Jahne, B., “Image Processing for Scientific Applications”, CRC Press, 1997.
H. von Storch, and C. Frankignoul, “Empirical Modal Decomposition in Coastal Oceanography”, in: K.H. Brink, and A.R. Robinson (Eds.): The Sea, Vol 10, Wiley, Chapter 16, 1998.
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Wolff, U., Seemann, J., Senet, C.M., Ziemer, F. (1999). Analysis of Morphodynamical Processes with a Nautical X-Band Radar. In: Förstner, W., Buhmann, J.M., Faber, A., Faber, P. (eds) Mustererkennung 1999. Informatik aktuell. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60243-6_43
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DOI: https://doi.org/10.1007/978-3-642-60243-6_43
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