• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2014.10a
• /
• pp.372-374
• /
• 2014

인천지역의 관광명소이며 우리나라 등대 역사의 산실인 팔미도등대에 등대의 가치를 조명하고 시민들에게 볼거리를 제공하기 위한 역사관을 건립을 추진하고, 그 과정을 소개하고자 함.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2014.10a
• /
• pp.370-371
• /
• 2014

부산광역시는 대한민국 바다의 관문이다. 인천 팔미도가 현존하는 최초의 등대임을 부인할만한 역사적 자료는 거의 없으나. 우리나라의 고지도를 살펴보면 그 이전 등대의 흔적들을 쉽사리 확인할 수 있다. 그리고 일제강점기 이전 대한제국의 역사는 팔미도 등대 빠른 시기에 부산항에 설치된 등대 존재를 강력히 나타내고 있다.

• 한국해양학회지
• /
• v.29 no.3
• /
• pp.278-286
• /
• 1994

Tidal sand ridges, which develop in Kyeonggi Bay generally parallel to the direction of tidal current on the sea bottom are also well shown in seismic profiles, surface and core samples were obtained from sand ridge field near the Palmi Do for the study of origin and sedimentary environments of these sand ridges. Sand ridge field near Palmi Do can be divided into 3 seismic units(unit A, B, C), and each unit has one sand ridge(ridge A, B, C), Ridge A that shows clinoform prograding southeastwards is generally parallel with tidal current trending northeast to southwest(40$^{\circ}$). It means that sand ridge is migrating to southward. Unit B includes a sand ridge and a channel fill structure in seismic profiles. Compared with ridge A, ridge B has similar direction, magnitude and internal reflectors. So ridge B developed in the similar sedimentary environments to ridge A about 10 m lower than present sea level. As the rise of sea level, channel fill structure formed as the deposit of fine sediments with the shape of conformable bedding or horizontal bedding.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
• /
• 2004.11a
• /
• pp.33-40
• /
• 2004

본 논문에서는 해양조석의 부하효과가 매우 큰 것으로 알려져 있는 우리나라의 서해안을 비롯하여 연안에 설치된 GPS 상시관측소(제주도, 호미곶, 주문진, 마라도, 팔미도, 울릉도, 영도) 데이터를 사용하여 각 관측소의 해양조석의 부하영향으로 인한 지각의 연직변동량을 계산하였다. 총 12개의 해양조석 부하성분의 결과와 실제 해양조석값을 이용한 회귀분석을 통해 실제 해양조석에 대한 한반도 연안의 해양조석 부하영향을 추정하였다. 그 후 이들을 일본과 우리나라 주변에 대하여 지역적으로 개량한 해양조석모델(NAO99jb)로부터 계산된 결과들과 비교ㆍ분석을 실시하여, 지역적인 해양조석 모델의 개발가능성을 검토하였다.

• 한국해양학회지
• /
• v.21 no.1
• /
• pp.56-71
• /
• 1986

In order to clarify the influence of environmental factors on the phytoplankton cmmunity in Kyeonggi Bay, the hydrological and water quality data were obtained from 20cruises from May, 1981, to September, 1982 in this bay. Physical conditions at the mouth of the bay are more stable than those at the head of the bay. Temperatures and salinities of the upper part of the bay show great seasonal fluctuations due to the river discharge. By the extending effects of freshwater, a weak two-layer flow system is formed from the upper part of the bay to Palmi Island. In summer thermal stratification are formed in the middle and outer parts of the bay. In winter, However, the temperature shows no vertical temperature gradient. The inner bay and the vicinity area of Incheon Harbour are relatively polluted and eutrophicated due to both the runoff of freshwater from the Han River and the waste discharge from Incheon industrial complex. However, except the polluted area, the study areas are well oxygenated with more than 90% saturation.

• Journal of Navigation and Port Research
• /
• v.35 no.8
• /
• pp.625-629
• /
• 2011

In this study, we analyzed the signal environment of 17 DGNSS stations operated by DGPS Central Office through TEQC quality checking, visibility analysis and site visits. With TEQC, we produced times series of four indices of TEQC quality checking: observation ratio, L1 pseudorange multipath, L2 pseudorange multipath, and the frequency of cycle slip events. From visibility analysis, the directions where missing observations are happening were identified and the result was verified through onsite investigation. Without considering TEQC indices at the six sites(Palmido, Eochungdo, Geomundo, Pyeongchang, Seongju, and Chungju), the average TEQC indices were: 98% observation ratio, 0.19m of L1 pseudorange multipath, 0.71m of L2 pseudorange multipath, and 1.3 cycle slips per 1000 observations. The observation ratios at Palmido and Eochungdo were low. It was found that receiver settings were incorrect so that they could track the P2 signal of GPS satellites with L2C capability. No signal-blocking obstacles were found around the Geomundo station except the lighthouse. Thus, we guess that the poor TEQC indices at the site are believed to be caused by problems in the GPS hardware or cables. The low observation ratio at Pyeongchang is being caused by the surrounding hills blocking the satellite view from the south to the northwest directions. Even though all of four TEQC indices were bad at Seongju and Chungju stations, we found that the signal reception environment at the two sites is in good condition. We think that the quality indices got poor probably because of malfunctioning equipment. So, further investigation is needed for the Seongju and Chungju sites.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2007.12a
• /
• pp.344-346
• /
• 2007

제2차 인천항 기본계획 수정계획(2006.12, 해양수산부)에 의거하여 인천항의 향후 물동량 추정과 이에 따른 항만개발계획이 수정 수립되었다. 특히 2009년 인천대교가 완공 계획됨에 따라 팔미도북서 출항항로의 설치 운영 등 항내 항로의 교통흐름에 큰 변화가 예견됨에 따라 각 항로별 교통 혼잡도를 분석하여 교통흐름을 원활하게 개선할 수 있는 방안을 제시하였다.

• Proceedings of the Korean Society of Sericultural Science Conference
• /
• 2003.04a
• /
• pp.15-15
• /
• 2003

독일의 지리학자 Ferdinand F.Von Richthofen(1833-1905)의 $\boxDr$China$\boxUl$ (1877)에서 비단길(Seidenstrassen-영역 silk road) -동서 교통의 역사를 개관하고서 중국과 서툴키스탄 및 북서 인도와의 silk 무역을 매개한 중앙아시아 경유의 길을 일렀음. 리히트호펜에서 한걸음 나아가, 1910년 독일 지리학자 알벨트헬만 (Albert Herrmann)은 한 대(BC 114 - AD 127의 견의 최대의 판로의 하나가 시리아였음을, 들어, 내륙 아시아 및 이란을 경우 중국에 이르른 통로를 추가함. (직후 시리아의 팔미라 분묘에서 다수의 한면 발견) (중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2010.04a
• /
• pp.521-523
• /
• 2010

Reseatch and Analysis on the DGPS radiobeacon propagation measurement of Domestic ferry lines Starting with maritime DGPS Base stations of Palmido, Ochongdo which have been operated since 1999, truly our nation has become the most powerful country possessed with total of 17 DGNSS base stations in the field of DGNSS operation infrastructure. This paper intents to consider the development direction of the country's DGNSS services as identifying the services range of the maritime DGPS base stations in the south coast domestic ferry lines which sections are Busan$\rightarrow$Jeju, Jeju$\rightarrow$Nokdong.

• Journal of Advanced Marine Engineering and Technology
• /
• v.35 no.4
• /
• pp.491-499
• /
• 2011

Starting with maritime DGPS base stations of Palmido, Ochongdo which have been operated since 1999, truly our nation has become the most powerful country possessed with total of 17 DGNSS base stations in the field of DGNSS operation infrastructure. This paper examines into the country's DGNSS services as measuring the service range of the maritime DGPS base stations in the domestic ferry lines which sections are from Jeju to Incheon, from Busan to Jeju, from Jeju to Nokdong, the propagation characteristics of the radio waves of 300 kHz bands on sea and land path. As a result of identifying the service range of the DGPS in the sea routes of the southern sea and the western sea, the measured results of the DGPS signals are confirmed more than 100 NM(recommended service range). It can be possible to practical use the position information, which is safe navigation and various marine traffic management systems. It will be useful an expansion of maritime DGPS reference station in the near future.