Title :
Radar imaging of sea bottom topography under various azimuth angles
Author_Institution :
Survey Dept., Rijkswaterstaat, Delft, Netherlands
Abstract :
Weak hydrodynamic interaction theory is widely used to describe the signatures of features like fronts and bottom topography in radar images. However, this theory is unable to describe observations with the radar look direction perpendicular to the direction in which the current varies. This is due to the use of a local relaxation source term. In this paper a non-local source term is presented and discussed. It is shown how a non-local source term may solve present discrepancies between theory and experiment
Keywords :
bathymetry; geophysical techniques; oceanographic techniques; remote sensing by radar; seafloor phenomena; azimuth angle; bathymetry; dynamics; geophysical measurement technique; local relaxation source term; non-local source term; nonlocal source term; ocean; radar imaging; radar look direction; radar remote sensing; sea bottom topography; seafloor topography; weak hydrodynamic interaction theory; Azimuth; Hydrodynamics; L-band; Optical imaging; Predictive models; Radar cross section; Radar imaging; Radar theory; Sea measurements; Surfaces;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.772053
