Depth inversion in coastal water based on SAR image of waves

Wave-number spectrum technique is proposed to retrieve coastal water depths by means of Synthetic Aperture Radar (SAR) image of waves. Based on the general dispersion relation of ocean waves, the wavelength changes of a surface wave over varying water depths can be derived from SAR. Approaching the analysis of SAR images of waves and using the general dispersion relation of ocean waves, this indirect technique of remote sensing bathymetry has been applied to a coastal region of Xiapu in Fujian Province, China. Results show that this technique is suitable for the coastal waters especially for the near-shore regions with variable water depths.

[1]  W. Sullivan,et al.  A 10 km resolution image of the entire night-time Earth based on cloud-free satellite photographs in the 400–1100 nm band , 1989 .

[2]  Werner Alpers,et al.  Monte Carlo simulations for studying the relationship between ocean wave and synthetic aperture radar image spectra , 1983 .

[3]  P. S. Meadows,et al.  An introduction to marine science , 1978 .

[4]  J. Vogelzang,et al.  A comparison of the hydrodynamic modulation in some existing models , 1989 .

[5]  W. Philpot,et al.  Bathymetric mapping with passive multispectral imagery. , 1989, Applied Optics.

[6]  Yi-Yu Kuo,et al.  COASTAL BATHYMETRY FROM THE WAVE SPECTRUM OF SPOT IMAGES , 1999 .

[7]  D. Ross,et al.  On the detectability of ocean surface waves by real and synthetic aperture radar , 1981 .

[8]  Christopher R. Jackson,et al.  Synthetic aperture radar : marine user's manual , 2004 .

[9]  C. Mastenbroek,et al.  A semiparametric algorithm to retrieve ocean wave spectra from synthetic aperture radar , 2000 .

[10]  W. Alpers,et al.  A theory of the imaging mechanism of underwater bottom topography by real and synthetic aperture radar , 1984 .

[11]  Paul S. Bell,et al.  Shallow water bathymetry derived from an analysis of X-band marine radar images of waves , 1999 .

[12]  R. Raney,et al.  Theory of synthetic aperture radar ocean imaging: A MARSEN view , 1985 .

[13]  R. Holman,et al.  Estimation of wave phase speed and nearshore bathymetry from video imagery , 2000 .

[14]  C. C. Wackerman,et al.  Estimating near-shore bathymetry using SAR , 1998, IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174).