• 제목/요약/키워드: southeastern Korea

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동남해안지역의 피압단열 대수층에서 조석 분석법을 이용한 수리상수 추정

  • 심병완;정상용;성익환;이병대;조병욱
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2003년도 추계학술발표회
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    • pp.497-500
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    • 2003
  • If ground water levels of a confined fractured rock aquifer fluctuate with sea tides, individual values of hydrogeologic parameters can be determined. Tidal efficiency and time lag are first calculated from the water level data recorded at an observation device situated inland from the sea. The tidal efficiency factor of the aquifer at the seacoast is then determined from the observation in monitoring wells and used to calculate storage coefficient. Tidal efficiency factor and the tidal time lag are utilized to calculate storage coefficient and the results are compared. This method is tested in the southeastern coastal area of Busan, Korea. This is a simple and inexpensive way to test confined aquifer but the analysis should be performed according to the coastal environment.

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포항지역 지열수의 수리지구화학적 특성

  • 고동찬;염병우;하규철;송윤호
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2004년도 임시총회 및 추계학술발표회
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    • pp.453-454
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    • 2004
  • Hydrogeochemical and isotopic characteristics were investigated for groundwater of Tertiary basin in southeastern part of Korea where deep drilling is in progress for geothermal investigation. According to geology, aquifer was distinguished as alluvial, tertiary sedimentary bedrock (bedrock groundwater), and fractured volcanic rock (deep groundwater). Groundwater of each aquifer is distinctively separated in Eh-pH conditions and concentrations of Cl, F, B and HCO$_3$. Deep groundwater has very low level 3H and 14C whereas alluvial groundwater has those of recent precipitation level. However one of deep groundwater show mixed characteristics in terms of hydrochemistry which indicates effect of pumping. Deep groundwater have temperature of 38 to 43$^{\circ}C$ whereas bedrock and alluvial groundwater have temperature less than 2$0^{\circ}C$. Fractured basement rock aquifer has different hydrogeologicalsetting from bedrock and alluvial aquifer considering hydrogeochemical and isotopic characteristics, and temperature.

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Feasibility of Red Tide Detection around Korean Waters using Satellite Remote Sensing

  • Suh, Young-sang;Lee, Na-kyung;Lee, hyun-Jang;Kim, Hak-gyoon;Kim, Bok-kee;Hwang, Jae-dong
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2003년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.129-131
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    • 2003
  • Korea has experienced a Cochlodinium polykrikoides red tide 10 out of the last 10 years (1993-2002). This species of red tide has been experienced at least once by all the southern coast of the Korean peninsular and has been transported up the southeastern coast all the way to the northeastern coast since 1995. The impression is that red tide is spending and becoming more common not only in the nearest coastal water, but also in the offshore. (omitted)

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아까시아나무 모자익병에 관한 연구 2 (Mosaic Disease of Black Locust on Rodinia pseudo-acacja L.(Par. 2))

  • 김종진
    • 미생물학회지
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    • 제3권2호
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    • pp.22-26
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    • 1965
  • In order to investigate the host range of the mosaic disease of black locust in the Chunchon area, the sap of the mosaic-diseased leaves of black locust itself and the cowpea leaves infected with the above mentioned sap, were inoculated to 53 species of plants belong to 12 families. As to the result, no difference in infection was found as related to the virus sources, and the infection was recognized in 4 species of the family Chenopodiaceae and 8 species of the family Leguminosae. The plants recognized as hosts are as follows: the plants which showed local infection are Chenopodium album, Ch. ambrosioides, Ch. quinoa; the plants which showed systemic infection are Chenopodium amaranticolor, Phaseolus vulgaris, Robinia pseudo-acacia, Vigna sinensis; and Astragalus sinicus, Melilotus indicus, Phaseolus angularis, Pisum sativum and Vicia faba were recognized as carriers. Through investigating its host ranges and symptoms, this mosaic virus of black locust seems not to be regarded as the group of the black locust mosaic virus in southeastern Europe reported by Milinko et al (1961). And, too, it is thought hardly to exist in combination with the cowpea mosaic virus. It appears, therefore, that this mosaic virus was confined to that of black locust.

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GIS Indicator on New Urbanist Communities in Southeastern US

  • Sim, Sunhui
    • 대한공간정보학회지
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    • 제24권2호
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    • pp.89-94
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    • 2016
  • New urbanism is a school of urban development that combines residential, commercial, and civic land uses in a dense urban fabric of carefully prescribed form. Its advocates claim that New Urbanist developments are superior to prevailing urban development patterns on social and environmental sustainability. Its critics, however, argue that New Urbanism developments do not measure up to the social and environmental ideals and are, in some cases, just another form of urban sprawl. The goal of this study is to evaluate various criticisms of New Urbanist communities. This paper used empirical evidence to determine the performance of New Urbanist developments on the broader spatial and social context as opposed to the internal characteristics of the communities using GIS indicators. The results showed that the communities did not meet conventional criteria for New Urbanist ideals.

오륙도 주변해역 해양생물의 종조성과 계절변동 (Seasonal Variation of Species Composition in Marine Organisms at Oryukdo in the Southeastern waters off Korea)

  • 김정윤;김정년;최정화
    • 수산해양교육연구
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    • 제24권6호
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    • pp.781-792
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    • 2012
  • Seasonal variation of species composition in marine organisms around Oryukdo of Busan was investigated using a gill net between 2009 and 2011. A total of 82 species, 52 families, and 6 taxa were collected during the sampling periods. Species were included two species in Cnidaria, one in Urochordata, 12 in Mollusca, 12 in Crustacea, seven in Echinodermata, and 48 in Pisces. The dominant species were Crepidula onyx, Asterina pectinifera, Ceratostoma burnetti, Asterias amurensis, Anthocidaris crassispina, and Trachurus japonicus. These six species accounted for 48.4% in the total number. Diversity indices were highest in spring 2009 (2.77) and lowest in spring 2011 (1.66). Seasonal variation of species composition and abundance in marine organisms corresponded with the water temperature.

대기오염물질의 장거리 수송과 열적저기압의 관계 (Relationship between Thermal Low and Long-Range Transport of Air Pollutants)

  • 이화운;김유근;김해동;정우식;현명숙
    • 한국환경과학회지
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    • 제10권2호
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    • pp.143-151
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    • 2001
  • The atmospheric conditions and the transport mechanism of long-range transport of air pollutants from coastal area to inland area were investigated using regular meteorological data and air pollution data obtatined from the southeastern area of Korea. Daytime temperature over the inland area(Taegu) was higher than that over the coastal area(Pusan) and the temperature difference of about 5~6$^{\circ}C$ when the thermal low most fully developed and the sea level pressure over Taegu was lower than that over Pusan by about 4~5hPa at that time. Therefore this low pressure appeared to the thermally induced low. Air mass polluted from the coastal area during the morning period was transported inland area, at first by the sea breeze and by the large scale wind system toward the thermal low generated in the mountainous inland region. This was explained by the fact that the concentration of air pollutants over Taegu increased throughtout the late afternoon.

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Geochemistry for the mafic volcanic rocks from the Korean Tertiary basins

  • Song, Suck-Hwan;Lee, Hyun-Koo
    • 대한자원환경지질학회:학술대회논문집
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    • 대한자원환경지질학회 2003년도 춘계 학술발표회 논문집
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    • pp.330-330
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    • 2003
  • Several volcanics are found within the Tertiary sedimentary basins, southeastern part of Korea. The sedimentary basins have been interpreted to have formed in the framework of separation of the East Sea. The volcanics are Eocene or Early and Middle Miocene in ages, showing a distincetve chronological gap, and show mafic and silicic (bimodal) in composotion. The Miocene volcanics were regionally and stratigraphically grouped into two varieties along the Hyeongsan fault; younger volcanics (13.6-15.2 Ma, K) from the north of the fault, erupted after the opening of the East Sea, and older volcanics (16.2-21.1 Ma) from the south of the fault. (omitted)

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Six New Records of Hydroptilidae (Trichoptera) from Korea

  • Park, Sun Jin;Ito, Tomiko;Nozaki, Takao;Kong, Dongsoo
    • Animal Systematics, Evolution and Diversity
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    • 제34권2호
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    • pp.101-109
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    • 2018
  • In the microcaddisfly family Hydroptilidae, only 12 species belonging to four genera are known currently from the Korean Peninsula. Yet, worldwide this family is one of the biggest of the Trichoptera families. Collection from 2015 to 2017 by aerial sweeping and light-trapping in the southeastern part of Korean Peninsula (Gyeongsangbuk-do and Gyeongsangnam-do) included species not recorded previously from the Korean Peninsula. We provide re-descriptions of the six species(Hydroptila dampfi Ulmer, 1929, H. introspinata Zhou and Sun, 2009, Orthotrichia costalis(Curtis, 1834), O. tragetti Mosely, 1930, Oxyethira miea $Ol{\acute{a}}h$ and Ito, 2013, and Stactobia nishimotoi Botosaneanu and Nozaki, 1996) to improve comprehension of Korean hydroptilids.

Distribution of certain chlorobenzene isomers in marine sediments from the southeastern coastal areas of Korea

  • Moon, Hyo-Bang;Park, Hee-Gu;Kim, Sang-Soo;Lee, Pil-Yong;Kim, Hak-Gyoon;Gon Ok
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2001년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.267-268
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    • 2001
  • Chlorobenzenes (CBs) are ubiquitous hydrophobic chlorinated organic compounds in the environment. These compounds are used as de-ordants, solvents and pesticides, as well as byproducts of agro- or petro-chemical related manufacturing processes, such as PCBs and pentachlorophenol, or of biodegradation of lindane (Newhook and Meek, 1994). Unlike some organochlorine (OC) compounds, including polychlorinated biphenyls (PCBs) and various pesticides, CBs are not banned from production or use in any country. (omitted)

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