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http://dx.doi.org/10.5762/KAIS.2018.19.1.654

A Study on Continuous long-term Wave Observation using Remote Monitoring System  

Shin, Bumshick (Department of Future Convergence Technology, Catholic Kwandong University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.1, 2018 , pp. 654-659 More about this Journal
Abstract
In this study, continuous long-term observation is implemented with an ocean radar. Ocean radar conducts remote observation (combined) with ground-based radars, which enable a series of simultaneous observations of an extensive range of the coast with high frequency. An ocean radar for continuous long-term observation is operated at Samcheok on the east coast of Korea. Samcheok experienced tsunami damage in recent years and is the location of a nuclear power plant. In order to examine the reliability of the ocean radar, a pressure-type wave gauge, ultrasonic wave gauge, and ocean buoy are installed for the purpose of data comparison and verification. The ocean radar used in this study is an array-type HF-RADAR named WERA (WavE RAdar). The analysis of the data obtained from continuous long-term observations showed that the radar observations were in agreement with more than 90% of the wave data collected within a 25 km range from the center of two sites. Less than 1% of the entire observation data was unmeasured by the time series analysis. As a result of comparing the radar data with the direct observations made by the wave gauge, it was inferred that the RMS deviation is less than 20cm and the correlation coefficient was in the range of 0.84 ~ 0.87. Moreover, supported by such observations, a comprehensive monitoring system is being developed to provide the public with real-time reports on waves and currents via the internet.
Keywords
HF-Radar; Ocean Radar; Wave Observation; Coastal Disaster Prevention; long Period Wave;
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  • Reference
1 Gyu-Tae Shim, Hyung-Min Bae, Bum-Shick Shin, Kyu-Han Kim, "An Analysis on the Applicability of Ocean Radar for Wave Energy Analysis", Korean Society of Civil Engineers Annual Conference, pp. 1895-1898, 2013
2 Crombie, D.D., "Doppler spectrum of sea echo at 13.56 Mc/s", Nature, 175, pp. 681-682, 1955. DOI: https://doi.org/10.1038/175681a0   DOI
3 Barrick, D.E., "Remote sensing of sea state by radar, In Remote Sensing of the Troposphere", ed. V. E. Derr, U.S. Govt. Printing Office, Washington, DC, 1972.
4 Wyatt, L.R., G.J. Holden, "HF radar measurement of multimodal directional wave spectra", Global Atmosphere and Ocean System, 2, pp. 265-290, 1994.
5 Barrick, D.E. "Extraction of wave parameters from measured HF sea echo Doppler spectra", Radio Science, 12, pp. 415-424. DOI: https://doi.org/10.1029/RS012i003p00415   DOI
6 Graber, H.C., M.L.Heron, "Wave height measurements from HF radar", Oceanogr., 10, pp. 90-92, 1997. DOI: https://doi.org/10.5670/oceanog.1997.32   DOI
7 Heron, M.L., A.Prytz, "Wave height and wind direction from the HF Coastal Ocean Surface Radar, Canadian Journal of Remote Sensing, (28), pp. 385-393, 2002. DOI: https://doi.org/10.5589/m02-031   DOI
8 Heron, S.F., M.L. Heron, "A comparison of algorithms for extracting significant wave height from HF radar ocean backscatter spectra", J Atmospheric and Oceanic Technology, 15, pp. 1157-1163, 1998. DOI: https://doi.org/10.1175/1520-0426(1998)015<1157:ACOAFE>2.0.CO;2   DOI