• 제목/요약/키워드: coast

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A Chemical Analysis of Airborne Particulates at the near Coast Site, Ul-jin Geun Gyungbook

  • Lee, Dong Sub;Park, Jin Sik
    • 한국환경과학회지
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    • 제24권5호
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    • pp.615-622
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    • 2015
  • East Asia is characterized by anthropogenic emissions resulting from the large population and fast economic growth of this region. Since the prevailing wind is westerly and northwesterly, emissions from Ul-jin can be expected to contribute to acidic deposition increase in downwind direction. Aerosols collected at the near coast site, Uljin geun, gyungbook and were analyzed for $NH_4{^+}$, $Mg^{2+}$, $Na^+$, $Ca^{2+}$, $Cl^-$, $SO_4{^{2-}}$, and $NO_3{^-}$ from Aug. 2012 to Feb. 2013. The seasonal averaged aerosol concentration showed the highest potassium and calcium ion in winter and the highest ammonium ion due to a meadow and high solar intensity in summer. Sodium and chloride ion showed the same ratio all seasons and sulfate and nitrate species showed the maximum value in winter Chemical components of aerosols collected at the near coast site, Uljin geun, gyungbook were lower by 16 to 73% than those collected at other similar environment site such as kanghwa, yangyang. Comparing air quality data at the near coast site, Uljin geun, gyungbook, There was found that Uljin coast site is less influenced by the sea salts(potassium, magnesium, calcium) and nss-$SO_4{^{2-}}$ percentage is 3~13% higher than similar condition site.

해상에서 선박에 대한 영장 없는 수색과 압수 - 미국 해안경비대(Coast Guard)의 직무집행과 관련하여 - (Warrantless Searches and Seizures of Vessels at Sea)

  • 김종구
    • 해양환경안전학회지
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    • 제15권4호
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    • pp.375-383
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    • 2009
  • 해상에서 선박에 대한 수색과 압수도 형사소송법의 일반원칙에 따라 영장을 발부 받은 후 이루어져야 한다. 하지만, 해상과 선박의 특수성을 고려한다면, 해상에서의 수사 활동과 그 수단으로서 압수와 수색에 대해서는 육상에서와는 다른 기준에 따라 판단할 필요성도 있다. 해상 선박에 대한 수색과 압수에 있어서 영장주의의 예외에 관한 미국의 판례와 이론을 미국 해안경비대(Coast Guard)의 직무집행과 관련하여 고찰하였다. 이러한 연구결과는 국내 해양경찰의 직무활동에 관한 근거 법률의 마련과 그 활동의 적법성 판단에 주요한 지침이 될 수 있을 것으로 생각된다.

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Distribution of Eelgrass, Zostera marina L. on Coasts of the Korean Peninsula: Preliminary Study for Eelgrass Restoration

  • Lee, Sang-Yong;Kwon, Chun-Jong;Lee, Kun-Seop;Choi, Chung-Il
    • Ocean and Polar Research
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    • 제24권1호
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    • pp.55-61
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    • 2002
  • Eelgrass, Zostera marina L. widely spreads throughout all the coastal areas of the Korean Peninsula. However, some previously reported eelgrass populations disappeared. The disappearance was probably caused by anthropogenic disturbance such as reclamation and pollutant or exceeded nutrient release. Eelgrass beds occurred from the intertidal to the subtidal zone, mainly in lagoon, estuaries, ports, barrier reef and bays. Eelgrass beds were also found at the intertidal mud and sand flats, subtidal mud and sandbank in more exposed areas. Habitat characteristics of eelgrass beds distributed on the coasts of the Korean Peninsula varied among coast areas. Eelgrass distributed constantly throughout the southern coast of Korea, while the distribution was limited at lagoon, bay, port, or barrier reef on the eastern coast, because of steep water depth and high wave energy in that coast. On the western coast, eelgrass mainly appeared at the intertidal and subtidal zones in islands. Sediment characteristics of the Z. marina beds varied with locality, tidal current and water motion. Sediments of Z. marina beds were composed of sand, muddy sand, sandy mud and mud. Mean grain size ranged from 1.5 to 4.1 phi.

해양경찰청의 적정 인력규모에 관한 연구 (A Study on Proper Employment Size of Korea Coast Guard)

  • 김상구
    • 한국항해항만학회지
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    • 제34권8호
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    • pp.679-685
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    • 2010
  • 본 연구는 해양경찰청의 적정 인력규모는 어느 정도인가? 하는 것을 밝혀보고자 하였다. 이러한 연구목적을 달성하기 위해 해양경찰조직에 적합한 표준정원모형을 시험적으로 도출하였다. 연구의 결과, 해양경찰청의 적정 인력규모를 산출하기 위한 표준정원모형은 Y(인력수) = 상수 + (B$\times$범죄발생건수) + (B$\times$일반회계총결산액) + (B$\times$해양경찰 함정수) 으로 나타났고, 이에 따라 해양경찰청의 적정 인력규모를 산출한 결과, 해양경찰청의 표준정원은 7,369명으로 나타났다.

The problems of the Asia-North America Container Routes - Los Angeles and Panama -

  • Rodriguez silva, Esther;Kubo, Masayoshi
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2004년도 Asia Navigation Conference
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    • pp.54-63
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    • 2004
  • There are two principal routes for the Asia-North America containerized cargo, that of Asia-West Coast and Asia-East Coast. On the West Coast, the Asia-Los Angeles, dominate the commerce, whereas on the Asia-East Coast it's the Panama Canal. Each of these routes has different characteristics. All are similar in that each is the door to the commerce of containerized cargo originating in Asia; each combines maritime and overland transportation; each has important intermodal connections and is able to distribute cargo throughout the West and East Coasts of the United States. Each route also has its port of preference that has the necessary infrastructure, equipment and intermodal connections. For example, in the case of the Port of Los Angeles, in spite of some of its advantages, it has several serious problems due to the interminable containerized cargo traffic that must be solved rapidly and satisfactorily in order to progress. In this paper, we would like to show the problems of two main routes.

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New Record of Sargassum filicinum Harvey (Fucales, Phaeophyceae) in the Pacific Coast of Mexico

  • Aguilar-Rosas, Luis E.;Aguilar-Rosas, Raul;Kawai, Hiroshi;Uwai, Shinya;Valenzuela-Espinoza, Enrique
    • ALGAE
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    • 제22권1호
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    • pp.17-21
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    • 2007
  • Sargassum filicinum Harvey, a brown alga (Phaeophyceae) native to Northeastern Asia, has been recently reported from the coast of Southern California (USA). Here we report the occurrence and range extension of this introduced species, as we found the alga at La Jolla and Rancho Packard in Todos Santos Bay, Baja California, Mexico. The first collections of S. filicinum correspond to several immature plants, found on September 8, 2005, drifting in the intertidal zone at La Jolla. Later on November 9, 2006, we found a well-established population in Rancho Packard in the middle intertidal zone to 2 m depth. Since S. filicinum is an annual monoecious species with air bladders, the risk there is a high risk of spreading rapidly along the Pacific, as in the case for S. muticum. The population in Rancho Packard extends 500 m along the coast, consisting mainly of young plants with an average length of 30 cm and a density of 5 thallus/m2. This is the first record of this invasive species for the Mexican Pacific coast, and it represents the southern limit along the Pacific coast of North America. This finding suggests that this invasive species has successfully colonized the Pacific coast of North America and its distributional range is still expanding.

한국 해안식물의 생태학적 연구 - 남해안의 사구식물군락의 종조성과 현존량 (Ecological Studies on the Coastal Plants in Korea-Floristic Compositon and Standing Crop of the Sand Duen on the Southern Coast)

  • Lee, Woo Tchul;Sand-Keun Chon
    • The Korean Journal of Ecology
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    • 제6권3호
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    • pp.177-186
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    • 1983
  • Vegetation types and their standing crop in the sand dune on the south coast of Korea was investigated by the method of Curtis, J.T. and McIntosh, R.P. (1951). The relationship between vegetation types and environmental factors was also analyzed. The dominant species in the vegetations of the south coast sand dune were Carex pumila, Calystegia soldamella, Imperata cylindrica var. koenigii, Vitex rotundifolia, Ixeris repens, Carex kobomugi, Zoysia macrostachya. The species density in the sand dune vegetation increased with the distance from the coast, psammophyte and rhizome psammophyte decreased with the distance from the coast but other plants increased. The standing crop of the sand dune vegetatiion was average $53.79g/m^2$. An individual standing crop of Vitex routundifolia and Carex kobomugi varied with the curve of secondary degree. The salt content of the sand dune soil from 2.95 to 11.78 mg %, and it was not significant differences among stands, but it was varied with the distance form the coast. Negative relationship between warmth index and aboveground standing crop was found and the formula y=283.8886 - 2.4910X could be estimated.

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한국 동해안 냉수괴의 해양화학적 고찰 (CHEMICAL OCEANOGRAPHIC ASPECT OF THE COLE WATER MASS IN OFFSHORE OF THE EAST COAST OF KOREA)

  • 박청길
    • 한국수산과학회지
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    • 제11권2호
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    • pp.49-54
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    • 1978
  • 한국 동해안해역에서 하계에 출현하는 냉수괴의 생성기구를 해양화학적인 측면에서 검토한 결과를 요약하면 다음과 같다. 1. 동해연안의 냉수괴출현해역의 인산염과 용존산계의 특수한 관계를 조사한 결과 동해남부 연안해역인 감포부근 해역에서만 용승현상을 인정할 수 있었으나 그 이북 동해중부해역에서는 용승현상을 인정할 수 없었다. 2. $\sigma_t-O_2$ diagram에 의해 동해연안해역의 구성수괴를 분석하면 T-S diagram 으로는 구별하기 어려운 북한한류계수와 일본해고유냉수를 구별할 수 있었다. 3. 동해남부 연안해역을 제외한 동해중부 연안해역에 출현하는 냉수괴의 기원은 일본해고유냉수의 용승에 의한 것이 아니고, 북한한류가 안안을 따라 남하하는 현상 때문으로 보인다.

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목초 및 사료작물 정부장려품종의 지역적응성 평가 V. 이탈리안 라이그라스의 사초수량과 사료가치 (Evaluaton of the Government Recommended Forage Cultivars in Korea V. Forage performance and quality of Italian ryegrass cultivars)

  • 김동암;김문철;전우복;신정남;권찬호;금종성;임상훈
    • 한국초지조사료학회지
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    • 제18권1호
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    • pp.11-18
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    • 1998
  • Twelve Italian ryegrass (Lolium mult~flomm L.) cultivars have recommended as the government recommended forage cultivars since 1984, however, the forage performance and quality have been mostly tested at two locations, such as Suweon and Sunghwan in the Middle Northwestern and Middle Southwestern Coast Regions, respectively. Therefore, the objective of this experiment was to retest the forage performance and quality of already recommended twelve government Italian ryegrass cultivars at five scattered locations, such as Icheon, Suweon, Sunghwan, Keon- and Kwangju from 1992 to 1995 with the intention of improving recommendations to dairy farmers. Cultivars with more dry matter yield than the control 'Tetrone' were 'Tosca' , 'Bartissimo' , 'Florida 80' and 'Gordo' in the Middle Northwestern Coast Region ; 'Tosca' , 'Florida 80' , 'Bartissimo' , 'Wencke' and 'Gordo' in the Middle Southwestern Coast Region ; 'Tosca' , 'Florida 80' , 'Sikem' , 'Bartissimo' , 'Wencke' and 'Gordo' in the Keongbuk Inland Region; 'Florida 80', 'Tosca' , 'Barmultra' and 'Bartissimo' in the Southern Inland Region and 'Florida 80' , 'Gordo' , 'Sikem' , 'Bartissimo' and 'Tosca' in the Southern Coast Region. At all the locations in 1992-95, 'Florida 80' produced the highest forage yield and showed earliness, but this cultivar was less cold tolerant in the Middle Northwestern and Middle Southwestern Coast Regions and grew tall which made it vulnerable to lodging in all the exprimental regions except the Southern Coast. Differences among the ryegrass cultivars for the three year mean ADF and NDF were small and inconsistent.

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