• 제목/요약/키워드: 세종과학기지

Search Result 39, Processing Time 0.024 seconds

Interview - 이홍금 극지연구소 소장 - "우리나라 극지연구 수준, 선진국 대열에 합류"

  • Lee, Gang-Bong
    • The Science & Technology
    • /
    • s.510
    • /
    • pp.4-7
    • /
    • 2011
  • 극지연구소가 최근 바쁘게 돌아가고 있다. 남극 세종기지에 이어 본격적인 남극연구가 수행될 남극 장보고과학기지가 남극대륙 남단에 세워지고 있다. 한국 최초의 쇄빙연구선 아라온호는 지금 남북극을 항해하면서 다국적인 국제협력 연구가 한창이다. 송도국제도시에는 3만5천여$m^2$의 부지에 신청사가 세워지고 있다. 이 모든 움직임 뒤에는 사업을 진두진휘하고 있는 이홍금 소장이 있다. 극지연구소의 새 비전을 제시하고 있는 이 소장을 만나 보았다.

  • PDF

Estimation of R-value and Uniaxial Compressive Strength of Rocks around the King Sejong Station, Barton Peninsula, Antarctica from SilverSchmidt Q-value (실버슈미트 Q값으로부터 남극 바톤반도 세종과학기지 주변 암석의 R값 및 일축압축강도 추정)

  • Lim, Hyoun-Soo;Jang, Bo-An;Kim, Jung-Han;Kang, Seong-Seung
    • Tunnel and Underground Space
    • /
    • v.25 no.2
    • /
    • pp.199-209
    • /
    • 2015
  • The rebound hardness test using the SilverSchmidt hammer was performed for diorite, granodiorite, and andesite exposed around the King Sejong Station, Barton peninsula. Then, the R-value and uniaxial compressive strength (UCS) of these rocks were estimated from the Q-values which were obtained from the SilverSchmidt hammer. The Q-value of diorite was distributed in the range from 67.0 to 89.5, granodiorite of the range from 57.5 to 89.0, and andesite of the range from 58.0 to 76.5. The average Q-values of diorite, granodiorite, and andesite were 76.0, 72.0, and 67.0, respectively. The converted UCS of diorite was distributed in the range from 118 to 195 MPa, granodiorite of the range from 91 to 193 MPa, and andesite of the range from 92 to 148 MPa. The average UCS of diorite, granodiorite, and andesite were 147, 136, and 117 MPa, respectively. The converted R-value of diorite was distributed in the range from 53.0 to 72.2, granodiorite of the range from 45.4 to 71.8, and andesite of the range from 45.8 to 60.9. The average Q-values of diorite, granodiorite, and andesite were 60.0, 58.0, and 53.0, respectively. The R-value was represented approximately 20% lower than the Q-value. In conclusion, it will be possibile that the R-value and UCS of rocks under the extreme area from the SilverSchmidt Q-value are evaluated.

이달의 과학자 - 한국해양연구소 극지연구센터 책임연구원 안인영 박사

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
    • /
    • v.33 no.4 s.371
    • /
    • pp.84-85
    • /
    • 2000
  • 남극해양생물학의 전문가로 91년 해양연구소 극지연구센터에 입소한 이래 계속 남극생물을 연구하고 있는 안인영(43세)박사. 그녀는 지난 수년간 남극 생물중 큰띠조개를 집중적으로 연구하고 있는데 세종기지연구실의 모의자연상태에서 배양실험을 해 본 결과 큰띠조개는 저온과 관계없이 먹이만 풍부하면 온대해역의 홍합에 버금갈 정도로 먹이를 섭취할 수 있다는 사실을 확인했다.

  • PDF

Mutual Adjustment of Oceanographic Measurements from leodo Station and Satellite Data (원격탐사자료와 이어도기지 해양관측자료를 이용한 상호 보정)

  • Kim Chang-Oh;Shim Jae-Seol;Hwang Jong-Sun;Lee Jae-Hak;Kim Soodung;Kim Jeong Woo
    • Korean Journal of Remote Sensing
    • /
    • v.21 no.2
    • /
    • pp.113-120
    • /
    • 2005
  • Oceanographic measurements from Ieodo Ocean Research Station and its vicinity were compared for assessment and mutually adjusted with satellite data. From the Topex/Poseidon and ERS-1/2 radar altimeter and scatterometer data, sea surface height, wind speed and direction were extracted and analyzed. Shipborne wind direction data acquired in June 1995 show good coherence with the satellite data, while sea surface height and wind speed show differences, possibly resulting from the distance between the measurement points. This can be improved by analyzing more satellite data or using other available shipborne data. The recent 3 months of Ieodo Station data between December 2004 and February 2005 were also analyzed and compared with the satellite data. The Ieodo Station data were found to have considerable gaps during the period as well as seriously biased particular when the data were averaged with some abnormal data. The Ieodo Station and satellite data were then mutually adjusted on the basis of their statistics. Ieodo Station oceanographic measurements are very efficient for ground-frothing of satellite data because they are stationary and the station is located far from the coast. On the other hand, the satellite measurements are the only data to fill up gaps and adjust biases of the Ieodo Station data.

Measurement of heavy metals in antarctic soil at the king sejong station: application of isotope dilution inductively coupled plasma mass spectrometry (동위원소희석 ICP-MS분석법에 의한 남극 세종기지 주변 토양의 중금속 측정)

  • Suh, Jung-Ki;Hwang, Euijin;Min, Hyung Sik
    • Analytical Science and Technology
    • /
    • v.21 no.5
    • /
    • pp.364-374
    • /
    • 2008
  • Antarctic Environmental Monitoring Handbook' was published by COMNAP/SCAR in 2000. The standardized method described in this handbook is recommended for monitoring of antarctic environment. High pressure bomb technique in this guide was used to decompose soil samples. In compliance with this guide book, high pressure bomb technique was applied to decompose the antarctic soil sampled at the King Sejong Station. An Isotope Dilution-Inductively Coupled Plasma-Mass Spectrometry (ID-ICP-MS) was applied to determine mass concentrations of Pb, Cu and Zn in the soil. The accuracy in this method was verified by the analysis of certified reference materials (CRM) of NIST 2702 (marine sediment). The analytical results agreed with certified value within the range from 99.5~100.8%. Matrix separation was necessitated for the determination of Cu and Zn by Chelex 100 ion exchange resin. As a result, the average mass concentrations of Pb, Cu and Zn which are suspected to be caused by anthropogenic pollution were 332.9 mg/kg, 95.6 mg/kg and 115.3 mg/kg, respectively. Those for the metals sampled in the soils of the remote regions from the station were 28.1 mg/kg, 101.8 mg/kg and 115.6 mg/kg, respectively.

Time-Lapse Electrical Resistivity Structures for the Active Layer of Permafrost Terrain at the King Sejong Station: Correlation Interpretation with Vegetation and Meteorological Data (세종과학기지 주변 영구동토의 활동층에 대한 시간경과 전기비저항자료의 해석: 기상 및 식생 자료와의 연계해석)

  • Kim, Kwansoo;Lee, Joohan;Lee, Eungsang;Ju, Hyeontae;Hyun, Chang-Uk;Park, Sang-Jong;Kim, Ok-Sun;Lee, Sun-Joong;Kim, Ji-Soo
    • Economic and Environmental Geology
    • /
    • v.53 no.4
    • /
    • pp.413-423
    • /
    • 2020
  • Over the wide area, King Sejong Station and the nearby land are uncovered with snow and ice conditions. Therefore, the active layer on the permafrost has been formed to be much thicker than the other Antarctica region. Electrical resistivity survey of Wenner and dipole-dipole arrays was undertaken at a series of time in the freezing season at the King Sejong Station to delineate subsurface structure and to monitor active layer in permafrost terrain. Time-lapse resistivity structures are well in terms of the vegetation distribution, ground surface temperature, and snow depth. Horizontal high resistivity belt(>1826 Ωm) at very shallow depth is thickening with the lapse of time, probably caused by the freezing of the water in the pore spaces with decrease of ground temperature. Subsurface structures for the area of low snow-cover and vegetated zone area are comprised of 0~0.5 m deep high-resistive gravel-rich soil, 0.5~3 m deep low-resistive active layer, and the underlying permafrost. In contrast, the unvegetated area and high snow-buildup is characterized with high resistivities larger than approximately 2000 Ωm due to freezing of the soil throughout the year. Data interpretation and correlation schemes explored in this paper can be applied to confirm the active layer, which is expected to get thinner in additional survey during the thawing season.