• 한국항해항만학회지
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• 제43권2호
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• pp.93-100
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• 2019

In 2001, about 20 years after the introduction of the standard buoys, the natural environment and maritime traffic flow changes in the waters near Korea and the necessity of improvement of the AtoN (Aids to Navigation) maintenance was suggested. The IALA provides guidelines for maintenance and management of AtoN, and Korea provides guidelines for the management and operation of standard buoys by means of the Enforcement on the AtoN laws. The objective of this study was to investigate the installation status and the repair status of the standard type buoys by sea area in order to improve the management and operation of the steel standard buoys. In addition, a survey was conducted on the improvement of the steel buoy fouling and the improvement of the lifting inspection cycle towards on the AtoN managers and producers of the representative authority by sea area. In the case of LL-26 (M) buoy type, the standard type buoy installation status of Korea in 2017 was 57.1%, and the LL-26 (M) type was 58.9% showing the highest repair rate. According to the results of the survey on buoys fouling, 51.2% were caused by the attachment of shellfish, and 43.2% were caused by bird feces. The results of the survey on the improvement of the regular buoy inspection cycle showed that the measures are to maintain the current inspection period of 2 years regardless of the characteristics of the sea area (water depth, inside and outside port, buoy size, etc.).

• Ocean and Polar Research
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• 제23권3호
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• pp.305-310
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• 2001

This paper describes a floating fish reef technology for enhancement of fisheries productivity in the muddy areas. The floating fish reef was composed of main fish cage, anchor rope and concrete anchor blocks. Main fish cage was made up of 12 steel buoys measuring 0.37m in diameter and 1.5m long, polyethylene (PE) netting and circular steel rings. Each steel buoy had buoyancy of 110kgf. The size of main fish cage was 1.96 m in diameter and 3.75m in length. Monitoring on its durability was made for eight months after installation. The steel buoys fixed on main fish cage and nettings were observed to be kept safely. The wet weight of fouling organisms per unit area$(m^2)$ was 26.6kgf after eight months. Reduction in the cross-section of steel buoys and circular steel rings of main fish cage were not found. In addition, any cracks on the concrete anchor blocks were not observed.

• 해양환경안전학회지
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• 제29권5호
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• pp.456-461
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• 2023

우리나라 해양생태계의 현황을 조사 및 분석하여 해양을 지속하게 이용할 수 있도록 하며 해양생태를 보전하고 관리할 수 있도록 국가 해양생태계 종합조사를 해양수산부의 위탁을 받아 해양환경공단에서 진행하고 있다. 국가 해양생태계 종합조사는 주요 조사정점을 설정하여 한반도 주변 해역의 생태계 변화를 조사하고 있지만, 정점이 연안을 중심으로 설정되어 근해역 등 조사범위 확대가 필요한 실정이다. 한편 해양수산부 항로표지과에서는 항로표지 인양점검 시 부착생물의 사진을 촬영하여 제공함으로써 국가 해양생태계 종합 조사를 지원하고 있지만, 해양환경공단과 협의하여 지정된 등부표에 한해서 부착생물 사진을 제공한다. 이에 항로표지를 국가 해양생태계 종합조사의 정점으로 활용할 수 있도록, 항로표지 및 등부표 인양점검 시 딥러닝 기반의 영상처리 알고리즘을 활용하여 부착생물의 정보를 생성하는 연구를 진행했다. 항로표지를 국가 해양생태계 종합조사의 정점으로 활용한다면 항로표지의 활용 가치를 제고하고 우리나라 근해의 이상 해황 및 생태계 변화를 분석할 수 있는 기초자료로 활용할 수 있다.

• Ocean and Polar Research
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• 제31권4호
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• pp.401-414
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• 2009

Yellow Sea Buoy (YSB) was moored in the center of the Yellow Sea at 35$^{\circ}$51'36"N, 124$^{\circ}$34'42"E, on 12 September 2007. YSB is a large buoy of 10 m diameter, and as such is more durable against collision by ships and less likely to be lost or removed by fishing nets compared to small ordinary buoys of 2.3 m diameter. YSB is equipped with 12 kinds of oceanic and meteorologic instruments, and transfers its realtime observation data to KORDI through ORBCOMM system every 1 hour. Data on ocean winds, air temperature, air pressure, and sea temperature appear to be accurate, while water property sensors (AAQ1183), which are sensitive to fouling, are producing errors. YSB (2007), Ieodo ocean research station (2003), and Gageocho ocean research station, which was completed in October 2009, will establish the 2 degrees interval by latitude in the Yellow Sea, and they will contribute though the 'Operational Oceanography System' as the important realtime observation network.