• 한국해양학회지:바다
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• 제22권3호
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• pp.57-68
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• 2017

이어도 종합해양과학기지(IORS, Ieodo Ocean Research Station) 주변 해역은 시 공간적으로 해양 환경 변화가 심하여, 해양-대기교환 과정을 비롯하여 해양 생태계와 기후 변화 연구에 필수적인 해수면온도(SST, Sea surface temperature) 자료의 지속적인 측정이 요구되는 해역이다. 본 연구에서는 이어도 종합해양과학기지에 열적외선 센서를 이용하여 해수면온도 연속 관측이 가능한 시스템을 구축하였다. 자동 대기 보정 및 해양 조건에 따른 방사율 계산이 가능한 해수면온도 추출 알고리즘을 개발하였고, 현장측정 해수면온도 자료와의 비교 및 검증을 통해 정확도를 평가하였다. 2015년 5월 17일부터 26일, 그리고 2016년 7월 15일부터 18일까지 기지에 체류하는 동안 열적외선 관측 시스템으로 측정된 해수면온도와 기지 부착 CT (Conductivity-Temperature) 및 튜브 부착 수온 센서들을 이용하여 현장에서 측정된 해수면온도 시계열을 비교하여 상호상관계수0.72-0.85, 평균제곱근 편차 $0.37-0.90^{\circ}C$의 정확도를 얻었다. 이 시스템은 이어도 종합해양과학기지뿐만 아니라 신안 가거초 및 옹진 소청초 등의 다른 종합해양과학기지에도 쉽게 구축이 가능한 시스템으로써 향후 발사될 인공위성의 해수면온도 산출알고리즘 개발의 테스트사이트나 검보정사이트로 활용될 수 있을 것으로 기대할 수 있다.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2007년도 추계학술대회 논문집
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• pp.213-214
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• 2007

• Strategy21
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• 통권33호
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• pp.178-201
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• 2014

China National People's Congress has passed the bill to combine the Marine Law Enforcement into "State Oceanic Administration People's Republic of China". This bill was intended to resolve the overlapping jurisdiction and disputes caused in ocean territory in nearby countries. The purpose of reorganizing the administration was to combine the dispersed organization into one group. This new big administration was basically organized to increase the power of China marine state on the long-term. The reorganization plan is to group General Administration of Customs, China Marine Surveillance, Fisheries Law Enforcement Command, and Border Control Department into one State Oceanic Administration. The new state Oceanic Administration carries the authority to protect rights and enforce the marine law supported by Public Security Bureau. Korea Coast Guard has been cooperating with China Marine Surveillance since 1998 when the first pact was made. The next step expanded to General Administration of Customs. Currently working with Regional Maritime Law Enforcement organizations dealing mostly with illegal Chinese fishing boats and IEODO conflict. In order to solve the problems we face today is to observe the process of the New China Coast Guard administration, analysing the effects that could be caused by the change and to keep close cooperation between the new administrations.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2014년도 춘계학술대회
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• pp.68-69
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• 2014

우리나라 관할해역까지 확장된 해상교통 모니터링이 필요하여, 장기적으로는 전 세계 원하는 해역의 선박 모니터링이 요구되는 시점이다. 이를 통해서만 우리의 Sea Line의 확보가 가능하며, 해양 경제영토의 확장이 가능하기 때문이다. 이와 같은 목표를 위한 초기 단계로, 경기만 연안 통합모니터링 시험을 거쳐 2013년 11월에는 이어도해양과학기지에서 실험이 이루어졌으며, 이 결과를 이번 학술대회에서 소개하고자 한다.

• 대기
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• 제17권4호
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• pp.421-433
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• 2007

We have investigated the seasonal characteristics of surface turbulent fluxes observed at Ieodo Ocean Research Station from 2005 to 2006. Both 10Hz and 30 minutes flux data are quality controled, and tilt correction is performed in 10Hz data before quality control. The turbulent fluxes of open sea shows clear seasonal variations, though diurnal variations are barely shown. The seasonal ratio of stable and unstable conditions are closely related to the temperature difference between sea surface and air. In stable and semi-stable condition, latent and sensible heat fluxes have very small values without any relationship with wind speed. Though friction velocity shows slightly increasing trend with wind speed, it has many outliers. In unstable condition, turbulent fluxes increased with wind speed. Especially, latent heat flux increased rapidly during DJF. The latent heat flux at high wind speeds is more scatter.

• Ocean and Polar Research
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• 제32권4호
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• pp.427-437
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• 2010

The Korean Government is trying to construct an ocean research station in Dokdo's water. The station would be the third ocean research station following the Ieodo station and the Gageocho station. Although the new station would served as a scientific research base for peaceful and academic purposes, the construction of the station will almost certainly lead to a diplomatic dispute between Japan and Korea in the near future due to the disputed ownership of the island. In light of the diplomatic protests against the construction of the Ieodo station by the Chinese Government, various domestic and international legal issues which could be raised regarding the construction of the Dokdo station need to be reviewed. Therefore, this article reviews the international legal status of the station and the rights and duties pertaining to its construction, investigates the domestic legal grounds relating to the construction and operation of the marine scientific installation, evaluates the international legal impacts of the construction on the expansion of maritime jurisdiction, the effective control on Dokdo and the negotiations on maritime boundary delimitation, and finally draws conclusions on the future activities of the Korean Government for the construction and operation of the Dokdo Ocean Research Station.

• 한국해안해양공학회지
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• 제14권2호
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• pp.161-170
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• 2002

이어도 해양과학기지의 풍력을 검토하기 위하여 50m/s의 설계풍속에 대하여 풍동실험과 수치해석을 수행하였다. 해수면위 상부구조물의 축소모형(1/80)에 대하여 풍력 및 모멘트를 계측하고 풍력계수를 산출하여 수치해석 결과와 비교한 결과, 이들 결과들이 대체적으로 잘 일치함을 확인하였다 따라서, 본 풍동실험의 결과를 상부구조물의 내풍설계자료로 충분히 활용할 수 있을 것으로 판단된다 실험결과를 이용하여 상부구조물 전체에 작용하는 풍력 및 모멘트 값들과 그리고 불투과 부속시설(주 데크, 태양광 발전판, 헬기 이 착륙장)의 외장 설계풍압과 구조설계용 풍압을 제시하였다.

• 한국해양환경ㆍ에너지학회지
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• 제17권4호
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• pp.297-305
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• 2014

본 연구에서는 2013년 11월 21일부터 30일까지 9일간 이어도 종합해양과학기지에 선박자동식별장치(AIS)를 설치하여 관할해역과 한 중 잠정조치수역의 항행 선박 및 어업활동을 모니터링하기 위해 선박정보를 수집하였다. 수집된 AIS 원시자료는 자체적으로 개발된 프로그램을 이용해 선박의 고유정보(해상이동업무식별번호, IMO 번호, 호출 부호, 선명 등)와 위치정보(위치, 속력, 침로 등)를 추출하고, 국적과 선종 정보만을 이용해 선박을 분류하였다. 선박의 국적 정보는 해상식별부호(MID)로 파악되는데, 소형선박에서 많이 탑재하고 있고 기능이 보다 간소화된 소출력의 Class B AIS는 국제해사기구(IMO)의 탑재 요건을 따르고 있지 않아 국적을 알 수 없는 선박이 다수 존재함을 확인하였다. 국적 정보를 가지고 있는 선박 중에서는 중국선박과 한국선박이 많았으며, 선종정보를 가지고 있는 선박 중에서는 화물선, 어선 순으로 많았다. 또한 국적을 알 수 없는 선박의 특성을 파악하기 위해 이어도해양과학기지 주변의 항행빈도수가 높은 중국선박과 한국선박의 항적과 비교하였으며, 이를 통해 국적미상 선박이 중국선박의 항행경로와 높은 유사성을 보이는 것을 확인하였다. 따라서 이 해역에서 중국어선은 선단의 형태로 자주 출몰하는 것으로 판단된다.

• 대기
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• 제22권1호
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• pp.97-107
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• 2012

To investigate variation of aerosol number concentration at each different size with three-dimensional (3D) wind components in ocean area, aerosol particles and 3D wind components were measured in the Ieodo Ocean Research Station, which is located to 419 km southwest from Marado, the southernmost island of Korea, from 25 June to 8 July 2010. The Laser Particle Counter (LPC) and ultrasonic anemometer were used to measure the size of aerosol particles and 3D wind components (zonal (u), meridional (v), and vertical (w) wind) respectively. Surface weather chart, NCEP/NCAR reanalysis data and sounding data were used to analyze the synoptic condition. The distribution of aerosol number concentration had a large variation from bigger particles more than 1.0 ${\mu}m$ in diameter by wind direction during precipitation. In the number concentration of aerosol particles with respect to the weather conditions, particles larger than 1.0 ${\mu}m$ in size were decreased and sustained to the similar concentration at smaller particles during precipitation. The increase in aerosol number concentration was due to the sea-salt particles which was suspended by southwesterly and upward winds. In addition, the aerosol number concentration with vertical wind flow could be related with the occurrence and increasing mechanism of aerosol in marine boundary layer.

• 대기
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• 제20권3호
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• pp.247-260
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• 2010

A recent dramatic increase of natural hazards in the Korean peninsular (KP) due to typhoons have raised necessities for the accurate typhoon prediction. Ieodo ocean research station (IORS) has been constructed in June 2003 at the open ocean where typhoons pass frequently, aiming to observe typhoons before the landfall to the KP and hence to improve the prediction skill. This paper investigates the importance of measurements at the IORS in the typhoon research and forecast. Analysis of the best track data in the N. W. Pacific shows that about one typhoon passes over the IORS per year on the average and 54% of the KP-landfall typhoons during 59 years (1950-2008) passed by the IORS within the range of the 150-km radius. The data observed during the event of typhoons reveals that the IORS can provide useful information for the typhoon prediction prior to the landfall (mainland: before 8-10 hrs, Jeju Island: before 4-6 hrs), which may contribute to improving the typhoon prediction skill and conducting the disaster prevention during the landfall. Since 2003, nine typhoons have influenced the IORS by strong winds above 17m/s. Among them, the typhoon Maemi (0314) was the strongest and brought the largest damages in Korea. The various oceanic and atmospheric observation data at the IORS suggest that the Maemi (0314) has kept the strong intensity until the landfall as passing over warm ocean currents, while the Ewiniar (0603) has weakened rapidly as passing over the Yellow Sea Bottom Cold Water (YSBCW), mainly due to the storm's self-induced surface cooling. It is revealed that the IORS is located in the best place for monitering the patterns of the warm currents and the YSBCW which varies in time and space.