• 한국지구과학회:학술대회논문집
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• 2005.09a
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• pp.124-131
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• 2005

A GDS (Geomagnetic Depth Sounding) method, one of extremely low-frequency EM methods, has been carried out to examine deep geo-electrical structures of the Korean peninsula. In this study, five additive GDS sites acquired in south-eastern area of the Korea were integrated into twelve previous GDS results. In addition, 3-D MT modeling considering the surrounding seas of the Korean peninsula was performed to evaluate sea effect at each GDS site quantitatively. As a result, Observed real induction arrows was not explained by solely sea effect, two conductive structures that are able to explain differences between observed and calculated induction arrows, was suggested. The first conductive structure is the Imjingang Belt, which is thought as a extension of Quiling-Dabie-sulu continental collision belt. The effects of the Imjingang Belt clearly appear at YIN and ICHN sites. The second one is the HCL (Highly Conductive Layer), which is considered as a conductive anomaly by mantle upwelling generated in back-basin region. The effects of the HCL are also confirmed at KZU, KMT101, 107 sites, in the south-eastern of the Korean peninsula.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.22 no.6
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• pp.361-373
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• 2010

Analysis has been made on the tide/storm surges characteristics near the Korean marginal seas in the 2008 and 2009 years using operational ocean prediction model of the Korea Meteorological Administration(KMA). In order to evaluate its performance, its results were compared with the observed data by tidal stations around Korean Peninsula. The model used in this study predicts very well the characteristics of tide/storm surges near the Korean Peninsula. Simulated storm surges show the evident effects of Typhoons in summer season. The averaged root mean square error(RMSE) of 48 hr forecasting between the modeled and observed storm surges are 0.272 and 0.420 m in 2008 and 2009, respectively. Due to strong sea winds, the highest storm surges heights was found in summer season of 2008, however, in 2009, the high storm surges heights was also found in other seasons. When Typhoon Kalmaegi(2008) and Morokot(2009) approached to Korean Peninsular, the accuracy of model predictions is almost same as annual mean value but the precision accuracy for Typhoon Morakot is lower than of Typhoon Kalmaegi similar to annual results.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2000.09a
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• pp.37-46
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• 2000

한반도 주변해역은 고조위와 태풍의 내습에 의한 강한 파랑으로 특징지워진다. 저조위때에 나타나는 1700$\textrm{km}^2$에 달하는 갯벌로 이루어진 서해안과 황해 동쪽 지역의 해안의 조건은 경기만에 l0m 범위의 높은 조위 차와 동계 계절풍과 태풍으로 인한 4-5m에 달하는 높은 파고를 발생시키는 고에너지와 높은 탁도 환경을 만들어 내는 매개체가 된다. (중략)

• The Korean Journal of Air & Space Law and Policy
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• v.24 no.2
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• pp.105-137
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• 2009

International Civil Aviation Convention contracted in 1944 adopted International Standards and Recommended Practices(SARPs) as Annexes to Convention for safety and order of International Air Transport and each contracting State shall establish and amend the law on the basis of the SAPRs. However, Any State which find it impracticable to comply in all respects with any such SARPs, or which deems it necessary to adopt regulations or practices differing in any particular respect from those established by SARPs shall give immediate notification to the ICAO of the differences between its own practice and that established by the SARPs and ICAO publish these difference notices as a supplement to annexes. Korea and neighboring countries contracting States with International Civil Aviation Convention are accomplishing standardization of regulation on the basis of SARPs in each State. Air Law of each State need to study on the trait and differences for safety of frequent air transport services around the Korean Peninsula, However, because Korea and Neighboring countries have differences of Air Law by reason of cultural differences and circumstance of each State. Korea and Neighboring countries mean Republic of Korea, The People's Republic of China, Japan and The Domestic People's Republic of Korea and study on Air Law of each state in this study. One of purposes of this study is to analyze the history and organization of each state and then to review how establishing own air law affect air law of each state. Another purpose is to make comparative study on differences between own regulation in Korea and neighboring countries and SARPs and then to review how the differences notice of each state affect air law of each state.

• Journal of the Korean Geophysical Society
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• v.5 no.4
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• pp.283-292
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• 2002

The Korean peninsula is located at the edge of the East Asian active margin. The seismic activity in the Korean Peninsula is relatively low compared with the neighboring countries China and Japan. According to the available Seismic information, the Korean Peninsula is not totally safe from the Earthquake disaster. Moreover, the area is surrounded by varies tectonic forces which is resulted from the relative movements of the surrounding tectonic plates "Pacific, Philippine Sea, Eurasian and South China". Nowadays South Korea has 65 GPS stations belong to 5 governmental organizations "each organization figure out its own GPS stations for different requirements" In order to minimize the seismic hazard in the Korean Peninsula a program for monitoring the recent crustal movement has been designed considering the uses of the available GPS station "some selected stations from the previously mentioned stations" and the tectonic settings in and around the Korean Peninsula. This program is composed of two main parts, the first part to monitor the crustal deformation around the Korean Peninsula with the collaboration of the surrounding countries "China and Japan" this part is composed of two phases "East Sea Phase and Yellow Sea Phase". These phases will be helpful in determining the deformation parameters in the East Sea and the Yellow Sea respectively While the Second part of this program, is designed to determine the deformation parameters id and around the main faults in the Korean Peninsula and the relative movement between the Korean Peninsula and the Cheju Island. Through out this study the needs of crustal movement center rose up to collect the data from the previously mentioned stations and Organizations in order to use such reliable data in different geodynamical application.

• Defense and Technology
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• no.6 s.196
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• pp.10-17
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• 1995

• 어항어장
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• s.61
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• pp.63-66
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• 2002

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.145-145
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• 2023

육지의 영양염류는 강수를 통해 강을 따라 바다로 흐른다. 연안 수질과 생태계를 효과적으로 관리하기 위해 수계를 통해 연안으로 배출되는 육상 영양염류 유출의 변화를 연구하는 것이 중요하다. 그러나 제한적인 수량과 수질 동시 관측자료로 인해 한반도 연안으로 유입되는 영양염량 변화에 대한 연구는 매우 제한적이다. 따라서 본 연구에서는 한반도 내륙에서 주변 연안 지역으로 유출되는 영양염류의 유출량과 그 변화량을 추정 및 분석하고 유출량에 대한 수량과 수질 변화의 기여도를 정량적으로 조사하였다. 2012-2021년 봄철(3-5월)에 한반도 연안 주변의 75개의 하천 지점에서 측정된 수질 농도 및 유량 관측 데이터와 한반도 연안 375지점에서 측정된 해양 수질 농도 데이터를 사용하였다. 더불어 22개의 해안지역 하천 유량 관측소와 근접한 수질 관측자료를 통해, 총 질소(TN), 총 인(TP), 클로로필a의 봄철 영양염류 유출 총량을 추정하고 그 변화량을 평가하였다. 그리고 영양염류 유출 변화량을 모델 수식으로 분해하여 유출 총량 변화량에 대한 하천 유량과 영양염류 농도 변화의 상대적인 기여도를 분석하였다. 분석결과는 연간 봄철 TN, TP, 클로로필a 유출 총량의 변화율이 영양염류의 농도 (각각 19%, 48%, 5%)보다는 하천 유량 (각각 84%, 51%, 91%)에서 더 많은 영향을 받았음을 보여주었다. 한반도 연안을 서해, 남해, 동해로 나누어 영양염류 유출 총량을 분석한 결과, 한반도 전체 유출량에서 서해의 가장 큰 기여도를 확인하였다. 또한 한반도 내륙에서 유출된 영양염류 총량이 연안의 수질에 끼치는 영향을 조사하고자 내륙 하천과 연안의 수질 간의 상관관계를 조사하여 간접적으로 파악하였다. 본 연구는 분석적인 접근을 통해 하천과 연안 수질 환경에서 수문학적인 연결고리의 중요성을 강조하고, 영양염류 유출 변화가 해안에 서식하는 생태계와 양식산업 생산성에 미치는 잠재적인 영향을 강조하였다.

• 한국해양학회지
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• v.27 no.4
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• pp.324-331
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• 1992

Water masses and circulations around Korean peninsula are briefly described based on recent studies. The results of theses studies are discussed from the physical point of view. Oceanic conditions in this region are largely due to the roles played by the Tsushima Warm Current, an onshore extension of the Kuroshio, and local conditions such as wind, surface heat flux and fresh water input etc. To the south and west of Korea, the northern/western border of the Tsushima Warm Current Water is roughly the line joining Taiwan and Cheju island. In summer, it is affected by large amount of fresh water discharged from the Changjiang and in winter, an intrusion of this water into the Yellow Sea is induced by the prevailing northwesterly monsoon wind. To the east of Korea, the Tsushima Warm Current Water presents roughly south of the line joining the wast coast of Korea near 37-38$^{\circ}$N and Tsugaru-Soya Straits in the northern Japan. But this situation, together with those in deeper layers, may greatly be changed by winter atmospheric conditions (wind and surface heat flux). The seas around Korea are not yet physically well understood and many problems wait physical explanations. Some problems, along with personal views of them, are mentioned.

• Journal of Climate Change Research
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• v.2 no.4
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• pp.221-235
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• 2011

This study summarizes previous studies on the climate change over Korea. Several studies on climate change in the neighboring countries as well as the entire globe are reviewed. Temperature data obtained from modern observational system show an increasing trend beyond the natural variations. The increasing rate of sea surface temperature (SST) over the ocean basins surrounding Korea is higher than that of the global-mean SST. The large increase in the SST over the oceans surrounding Korea may enhance tropical cyclone activity and heavy rainfall frequency in Korea. In addition, it has been reported that the changes in large scale circulation associated with global climate change influence the spatio-temporal variation of monsoon including Changma in summer and cold surges in winter. Although all researches on the subject were not fully discussed in this study due to short period of preparation, allowed pages, and authors' limited knowledge, we expect that this summarized reviews would be helpful to understand climate changes over Korea and the surrounding regions.