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http://dx.doi.org/10.7846/JKOSMEE.2015.18.2.116

Simulation and Evaluation of Sea Surface Observations Using a Microwave Doppler Radar  

Yoshida, Takero (Department of Ocean Technology, Policy and Environment, The University of Tokyo)
Rheem, Chang-Kyu (Institute of Industrial Science, The University of Tokyo)
Publication Information
Journal of the Korean Society for Marine Environment & Energy / v.18, no.2, 2015 , pp. 116-122 More about this Journal
Abstract
A simulation is applied to evaluate sea surface observations such as wave heights and surface currents by using a microwave Doppler radar. It is reported that the microwave irradiation width on the sea surface and Fourier transform time taken to sample data for frequency analysis affect Doppler spectra. To investigate the influences by these parameters, Doppler spectra are simulated with various numerical sea surface waves with currents. From the results, in the case of the microwave irradiation width is five times smaller than the wavelength of the sea surface wave, and the Fourier transform time is also five times shorter than the period of the sea surface wave, there is a possibility to measure wave heights accurately with a Doppler radar. In addition, relative surface currents can be estimated by analysis of long Fourier transform time. The simulation results showed the appropriate observing conditions with a microwave Doppler radar.
Keywords
Sea Surface Observation; Doppler Radar; Microwave Backscattering; Numerical Simulation;
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Times Cited By KSCI : 1  (Citation Analysis)
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