Simulation of SAR Ocean Turbulence Signatures using Direct Numerical Simulation and Radar/Hydrodynamic Modelling

Conference: EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar
04/23/2012 - 04/26/2012 at Nuremberg, Germany

Proceedings: EUSAR 2012

Pages: 4Language: englishTyp: PDF

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George, Simon G. (Astronautics Research Group, Faculty of Engineering & the Environment, University of Southampton, University Road, Southampton, UK)
Tatnall, Adrian R. L. (University of Southampton, UK)

Synthetic Aperture Radar (SAR) has shown remarkable ability to resolve turbulent phenomena such as eddies, breaking waves and ship wakes. Ship-wake turbulence was simulated using Direct Numerical Simulation (DNS) techniques and translated to simulated Normalised Radar Cross-Section (NRCS) and SAR imagery through use of existing radar/hydrodynamic models. Simulated remote-sensing signatures are presented and analysed for the ability to resolve turbulent structure from the resulting imagery and improve understanding of the relationships between small-scale turbulence and radar backscattering. The results obtained indicate that turbulent structure embedded in ship wakes can be translated to and resolved by changes in radar backscatter.