• Title/Summary/Keyword: 서태평양

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Multiple Linear Regression Model for Prediction of Summer Tropical Cyclone Genesis Frequency over the Western North Pacific (북서태평양 태풍발생빈도 예측을 위한 다중회귀모델 개발)

  • Choi, Ki-Seon;Cha, Yu-Mi;Chang, Ki-Ho;Lee, Jong-Ho
    • Journal of the Korean earth science society
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    • v.34 no.4
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    • pp.336-344
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    • 2013
  • This study has developed a multiple linear regression model (MLRM) for the seasonal prediction of the summer tropical cyclone genesis frequency (TCGF) over the western North Pacific (WNP) using the four teleconnection patterns. These patterns are representative of the Siberian high Oscillation (SHO) in the East Asian continent, the North Pacific Oscillation (NPO) in the North Pacific, Antarctic oscillation (AAO) near Australia, and the circulation in the equatorial central Pacific during the boreal spring (April-May). This statistical model is verified by analyzing the differences hindcasted for the high and low TCGF years. The high TCGF years are characterized by the following anomalous features: four anomalous teleconnection patterns such as anticyclonic circulation (positive SHO phase) in the East Asian continent, pressure pattern like north-high and south-low in the North Pacific, and cyclonic circulation (positive AAO phase) near Australia, and cyclonic circulation in the Nino3.4 region were strengthened during the period from boreal spring to boreal summer. Thus, anomalous trade winds in the tropical western Pacific (TWP) were weakened by anomalous cyclonic circulations that located in the subtropical western Pacific (SWP) in both hemispheres. Consequently, this spatial distribution of anomalous pressure pattern suppressed convection in the TWP, strengthened convection in the SWP instead.

WHO서태평양 지역 결핵현황

  • 대한결핵협회
    • 보건세계
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    • v.46 no.4 s.512
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    • pp.28-29
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    • 1999
  • 세계보건기구 서태평양 지역사무국에서는 서태평양지역국가 36개국중 자료를 보내온 29개국의 1997년도 결핵 현황을 집계하였으며 본 지면에서는 몇 회에 걸쳐 서태평지역 국가의 결핵현황을 살펴보고자 한다.

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Neogene Uplift in the Korean Peninsula Linked to Small-scaled Mantle Convection at Singking Slab Edge (소규모 맨틀 대류에 의한 한반도의 신제3기 이후 융기 운동)

  • Shin, Jae-Ryul;Sandiford, Mike
    • Journal of the Korean Geographical Society
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    • v.47 no.3
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    • pp.328-346
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    • 2012
  • This study provides quantitative constraints on Neogene uplift in the Korean peninsula using onshore paleo-shoreline records and seismic data. The eastern margin of Northeast Asia including Korea sits in the back-arc system behind the Western Pacific Subduction Zone, a complex trench triple junction of the Philippine Sea, Pacific, and Eurasian (Amurian) plates. An analysis of seismic data in the subduction zone shows that the pattern of uplift in the peninsula mirrors the extent of deep seismicity in subducting Pacific plate beneath. Combined with previous tomographic studies it is proposed that uplift is partly driven by asthenospheric upwelling caused by a sinking slab during the Neogene. In addition, the SHmax orientations of E-W and N-S trends in the peninsula are consistent with the prevailing in-situ stress fields in the eastern Eurasian continent generated by various plate boundary forces. The uplift in Korea during the Late Neogene is attributed, in part, to lithospheric failure relating to faulting movements, thus providing a link between dynamic effects of mantle upwelling at sinking slab edge and lithospheric responses driven by plate boundary forces.

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S-velocity and Radial Anisotropy Structures in the Western Pacific Using Partitioned Waveform Inversion (분할 파형 역산을 사용한 서태평양 지역 S파 속도 및 방사 이방성 구조 연구)

  • Ji-hoon Park;Sung-Joon Chang;Michael Witek
    • Economic and Environmental Geology
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    • v.56 no.4
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    • pp.365-384
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    • 2023
  • We applied the partitioned waveform inversion to 2,026 event data recorded at 173 seismic stations from the Incorporated Research Institutions for Seismology Data Managing Center and the Ocean Hemisphere network Project to estimate S-wave velocity and radial anisotropy models beneath the Western Pacific. In the Philippine Sea plate, high-Vs anomalies reach deeper in the West Philippine basin than in the Parece-Vela basin. Low-Vs anomalies found at 80 km below the Parece-Vela basin extend deeper into the West Philippine Basin. This velocity contrast between the basins may be caused by differences in lithospheric age. Low-Vs anomalies are observed beneath the Caroline seamount chain and the Caroline plate. Overall positive radial anisotropy anomalies are observed in the Western Pacific, but negative radial anisotropy is found at > 220 km depth on the subducting plate along the Mariana trench and at ~50 km in the Parece-Vela basin. Positive radial anisotropy is found at > 200 km depth beneath the Caroline seamount chain, which may indicate the 'drag' between the plume and the moving Pacific plate. High-Vs anomalies are found at 40 ~ 180 km depth beneath the Ontong-Java plateau, which may indicate the presence of unusually thick lithosphere due to underplating of dehydrated plume material.

New Horizons in Health (건강에 관한 미래의 방향)

  • Yu, Gyeong-Hye
    • 월간산업보건
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    • s.94
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    • pp.16-21
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    • 1996
  • 이글은 세계보건기구 서태평양 지역 사무처(처장 한상태 박사)에서 동지역의 과거와 현재의 사업에서 관찰되고 계획된 자료들을 기초로 마련된 것이다.

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New Horizons in Health (건강에 관한 미래의 방향)

  • Yu, Gyeong-Hye
    • 월간산업보건
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    • s.92
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    • pp.2-9
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    • 1995
  • 이글은 세계보건기구 서태평양 지역 사무처(처장 한상태 박사)에서 동지역의 과거와 현재의 사업에서 관찰되고 계획된 자료들을 기초로 마련된 것이다.

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Science Trends

  • Hyeon, Won-Bok
    • The Science & Technology
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    • no.11 s.414
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    • pp.110-111
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    • 2003
  • 홍콩과학기술대학, 홍콩중국대학과의 통합 갈등/ 균류의 새로운 역할 발견/ '화학 공장'으로 바뀐 WTC 건물/ UN, 서태평양 연어 보존사업 착수

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New Horizons in Health (건강에 관한 미래의 방향)

  • Yu, Gyeong-Hye
    • 월간산업보건
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    • s.93
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    • pp.16-20
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    • 1996
  • 이글은 세계보건기구 서태평양 지역 사무처(처장 한상태 박사)에서 동지역의 과거와 현재의 사업에서 관찰되고 계획된 자료들을 기초로 마련된 것이다.

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New Horizons in Health (건강에 관한 미래의 방향)

  • Yu, Gyeong-Hye
    • 월간산업보건
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    • s.95
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    • pp.12-18
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    • 1996
  • 이글은 세계보건기구 서태평양 지역 사무처(처장 한상태 박사)에서 동지역의 과거와 현재의 사업에서 관찰되고 계획된 자료들을 기초로 마련된 것이다.

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