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http://dx.doi.org/10.9765/KSCOE.2022.34.6.198

Current Status and Future Plans for Surface Current Observation by HF Radar in the Southern Jeju  

Dawoon, Jung (Ocean Circulation Research Center, Korea Institute of Ocean Science and Technology)
Jae Yeob, Kim (Ocean Circulation Research Center, Korea Institute of Ocean Science and Technology)
Jae-il, Kwon (Marine Disaster Research Center, Korea Institute of Ocean Science and Technology)
Kyu-Min, Song (Ocean Circulation Research Center, KIOST)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.34, no.6, 2022 , pp. 198-210 More about this Journal
Abstract
The southern strait of Jeju is a divergence point of the Tsushima Warm Current (TWC), and it is the starting point of the thermohaline circulation in the waters of the Korean Peninsula, affecting the size and frequency of marine disasters such as typhoons and tsunamis, and has a very important oceanographic impact, such as becoming a source of harmful organisms and radioactively contaminated water. Therefore, for an immediate response to these maritime disasters, real-time ocean observation is required. However, compared to other straits, in the case of southern Jeju, such wide area marine observations are insufficient. Therefore, in this study, surface current field of the southern strait of Jeju was calculated using High-Frequency radar (HF radar). the large surface current field is calculated, and post-processing and data improvement are carried out through APM (Antenna Pattern Measurement) and FOL (First Order Line), and comparative analysis is conducted using actual data. As a result, the correlation shows improvement of 0.4~0.7 and RMSE of about 1~19 cm/s. These high-frequency radar observation results will help solve domestic issues such as response to typhoons, verification of numerical models, utilization of wide area wave data, and ocean search and rescue in the future through the establishment of an open data network.
Keywords
HF radar; antenna pattern measurement; first order line; southern Jeju strait; wide area current observation;
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Times Cited By KSCI : 8  (Citation Analysis)
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