A5085591638- Oceanographic and Atmospheric Processes
- Marine and coastal ecosystems
- Ocean Waves and Remote Sensing
- Climate variability and models
- Marine and Coastal Research
- Arctic and Antarctic ice dynamics
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Marine and fisheries research
- Coastal and Marine Dynamics
- Geology and Paleoclimatology Research
- Underwater Acoustics Research
- Marine and coastal plant biology
- Coastal and Marine Management
- Earthquake and Tsunami Effects
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
- Educational Systems and Policies
- Particle accelerators and beam dynamics
- Marine Bivalve and Aquaculture Studies
- Particle Accelerators and Free-Electron Lasers
- Geological formations and processes
- Geological and Geophysical Studies
- Pulsed Power Technology Applications
- Geophysics and Gravity Measurements
Chonnam National University
2010-2024
Chonnam National University Hospital
2021
Sungkyunkwan University
2006-2020
Korea Meteorological Administration
2020
Korea Hydrographic and Oceanographic Agency
2020
Kongju National University
2020
Gongju National University of Education
2020
Kunsan National University
2010-2019
Rutgers, The State University of New Jersey
2002-2009
University of Florida
2008
Abstract The dispersal of the Hudson River plume in response to idealized wind forcing is studied using a three-dimensional model. model domain includes and its estuary, with realistic coastline bottom topography New York Bight. Steady low river discharge typical mean conditions high-discharge event representative spring freshet are considered. Without forms southward coastally trapped current at large recirculating bulge low-salinity water during event. Winds affect freshwater export...
중등학교 과학 및 지구과학 교과서의 해류도는 해양에 대한 학생들의 호기심과 관심을 유도하는 데 중요한 역할을 한다. 이 해류도들은 급변하는 기후변화와 지구상의 에너지 균형 문제와 관련이 있는 해류에 대해 학생들이 학습할 수 기회를 제공할 있다. 그럼에도 불구하고 최근의 해류관련 과학적 지식과 비교해 볼 때 다양한 오류들을 내포하고 있었다. 연구는 오류가 없는 해류도를 제작하고 동해 해류도들을 하나로 통일하기 위하여 해류도 제작의 기본적인 틀과 방법을 제안하였다. 먼저 중등 과학교과서 27종의 해류도와 기존의 연구 논문에서 제시한 주요 27개의 도법을 통일하였으며 동해의 난류와 한류들의 수치화된 정량적인 위치 정보를 추출하였다. 대한해협에서 대마난류의 분지 양상, 일본연안분지와 외해분지, 동한난류의 연안거리와 북상한계, 쓰가루해협, 소야해협을 통한 유출 양상과 환류, 리만한류와 북한한류의 분포 양상 등 제작을 위한 분석 항목들을 선정하였다. 해양 현장관측을 기반으로 형성된...
Abstract While an air pressure jump was moving southeastward over the shallow water region of eastern Yellow Sea in March 2007, a long ocean wave (meteotsunami) generated and amplified due to Proudman resonance. The arrived at coast during high tide with amplitude 1.4 m seawater overflew seawalls inundated land. High‐frequency sea level oscillations continued for 8–9 h after hit local coast. Moon's age 12 days, tidal range about 4 between neap spring tides. Two‐dimensional numerical...
The connectivity among straits of the northwest Pacific marginal seas is investigated with a primitive‐equation ocean circulation model simulated for 10 years from 1994 to 2003. Over simulation interval temporal and spatial means variations sea surface temperature are comparable those satellite temperature. transport through shows good agreement available observations high seasonality in Taiwan Strait, Korea Soya Strait but relatively low Tsugaru Strait. Kuroshio Warm Current (TWC) two...
Abstract To examine the evolution of wind‐driven flows in Yellow Sea (YS) during winter, ocean circulation was simulated using a three‐dimensional model with realistic topography and atmospheric forcing. The sea surface temperature, currents, path Warm Current (YSWC) agreed observations. Southward currents along Korean coast Chinese winter were also effectively identified. Spectra daily mean winds YSWC velocities subsurface layer had dominant peaks at 12 20 day periods. Time‐lagged...
The shoaling of an internal solitary waves depression in two layer fluid with a idealized slope-shelf topography is studied to classify the regimes shoaling.Two mechanisms were assumed be essential during wave shoaling: (i) breaking resulting mixing and (ii) changing polarity initial over slope into elevation on shelf.Proposed three-dimensional classification diagram based three parameters: angle , non-dimensional amplitude (wave normalized upper thickness) blocking parameter that ratio...
A merged TOPEX/POSEIDON and ERS‐1/2 altimeter data set is used to estimate nonseasonal variations of sea surface height (SSH) in the Japan/East Sea (JES) from October 1992 through February 2002. The have a good correlation (0.95) with tide gauge western JES. variability SSH higher southern warm region than northern cold region. root‐mean square value 5–10 cm area, whereas it about 4 area. Empirical orthogonal function analysis shows first mode be related intraseasonal oscillations over...
이 연구는 인공위성 고도계로 관측한 해수면 높이 자료를 이용하여 동해 표층해류를 생산하고, 전체 영역에 대하여 동시성 있는 표층해류 분포를 해류 정보 사용자에게 제공하기 위한 최초의 시도이다. 전 영역에서 고도계와 연안 조위관측소의 동시에 얻을 수 있으므로 준실시간으로 넓은 해역에 표층 지형류의 산출이 가능하다. 산출된 지형류로부터 주요 해류의 위치와 세기 그리고 중규모 이상의 소용돌이 발달 양상을 살펴볼 있다. 따라서 이들 이름과 평균적인 위치를 알 있도록 해양지명에 대한 명칭과 기술하고, 개념적인 해류도를 제시하였다. 해류정보가 실제 실용화될 고도계 산출한 월 계절 연도별 분포 예를 들고, 각 설명하였다. 또한 시 공간적으로 변화하는 형태를 객관적으로 분류하기 위하여 16년(1993~2008년)간의 경험직교함수(Empirical Orthogonal Function, EOF)를 분석하였다. EOF분석 제1모드(mode)는 주로 한국 동해안을 따라 북쪽으로 흐르는 동한난류와...
Abstract This study presents future climate change projections in the Northwest Pacific (NWP) marginal seas using dynamic downscaling from global models (GCMs). A regional model (RCM) for Ocean was setup and integrated over period 2001 to 2100. The used forcing fields three different GCM simulations downscale effect of change. MIROC, ECHAM, HADCM were selected provide signals RCM. These calculated GCMs Cyclostationary Empirical Orthogonal Function analysis added present lateral open boundary...
Floating seaweed rafts are a surface-pelagic habitat that serve as substrates for benthic flora and fauna. Since 2008, Sargassum horneri clumps have periodically invaded the Korea Strait. In this study, polymerase chain reaction–free small-organelles enriched metagenomics method was adopted to identify species of epibiotic eukaryotes present in floating S. fronds. A total 185 were identified, which about 63% previously undetected or unreported Korean waters. The harbored diverse assemblage...
In order to examine the generation mechanism of long ocean waves along west coast Korea and understand amplification process waves, sea level, atmospheric pressure wind data observed every minute from 2007 March 29 April 1 were analyzed onedimensional numerical model experiments performed. An jump propagated southeastward Backryungdo Yeonggwang with speed <TEX>$13{\sim}27\;m/s$</TEX> between 30 23:00 1:30. Average magnitude was 4.2 hPa. As a moving north south coast, generated level...
[1] The effects of deviations in the sea surface temperature (SST) on atmospheric variables over Yellow Sea were investigated by numerical simulations based realistic magnitude and gradient SST. SST was found to control primarily air temperature, stability, vertical moisture fluxes, whereas mainly affected wind fields. Although can also affect fields, its effect winds small compared with influence gradient. Both clearly evaporation rates. magnitudes rates be directly controlled magnitude,...
Northeastward drifts of massive Sargassum patches were observed in the East China Sea (ECS) and Yellow (YS) by Geostationary Ocean Color Imager (GOCI) May 2017. Coverage brown macroalgae was largest ever recorded ECS YS. Three-dimensional circulation modeling Lagrangian particle tracking simulations conducted to reproduce drifting trajectories patches. The controlled winds as well surface currents. A windage (leeway) factor 1% chosen based on sensitivity simulations. Southerly 2017...