<무덤> 명칭의 낱말밭 고찰

강기룡 한국어내용학회 1995 한국어내용론 Vol.2 No.-

Ocean Responses to Typhoon Soulik (1819) around Korea

강기룡,Hyeong Jun Jo,YoonJae Kim 한국해양과학기술원 2020 Ocean science journal Vol.55 No.3

We investigated the ocean responses to typhoon Soulik (1819) when it was approaching and landing on the Korean peninsula in August, 2018. During the typhoon passage period, very severe sea surface conditions were recorded such as 15 m of maximum wave height and 35 m/s in gusts, and a 10 degrees C water temperature decrease at the buoy station near Jeju Island. The operational storm surge prediction system of the Korea Meteorological Administration estimated over 50 cm of positive surge near the typhoon center in the approaching stage, and after the typhoon passed, a negative (reverse) storm surge lower than 30 cm was shown off the southern sea of Jeju Island, revealing a cyclonic circulation pattern of the surface water from the satellite altimeter data. According to one-day cycling Argo float observations near the landfall area in the Yellow Sea, temperature and salinity profiles during the typhoon activity showed a sudden deepening of the thermocline and halocline, and then up and down fluctuations between 30-50 m in depth. The temperature decreased by about 2 degrees C in the surface layer and the thermocline layer was deepened by about 10 m from 30 to 40 m in depth while the typhoon was exerting its influence. Salinity in the surface layer showed a sudden change before and after the typhoon, revealing an increase and decrease in 0-15 m and a decrease and increase below 20 m in depth, and the halocline manifested a similar pattern of variation as the thermocline.

술잔(酒杯) 명칭의 낱말밭 고찰

강기룡 우리어문학회 1993 우리어문연구 Vol.0 No.7

Variation of the summer low SST area in the southwestern coast of Korea

강기룡,이상룡 한국지질과학협의회 2014 Geosciences Journal Vol.18 No.2

Variation of the low sea surface temperature (LSST)area in the southwestern coast of was analyzed using the daily satellite-observed sea surface temperature data in 2005. The harmonicfitting method was used to separate the long-term variation(= annual + semi-annual components) from the raw data at eachgrid point, and the residual was estimated by subtracting the longtermcomponent. Investigating the amplitude and phase of tidalcomponents such as Mm and Mf made possible to check the tidalvariability of LSST especially in August, and the area of LSST wasestimated by comparing the long-term value and linear correlationwith lowest SST area. SST was decreased during the spring tide andincreased during the neap tide, and the maximum SST differencebetween the spring and neap was about 5 °C, and horizontal gradientwas 0.05–0.1 °C/km in the area. When the LSST area inAugust was defined by using two conditions: lower SST than thelong-term variation and high correlation coefficient with the lowesttemperature area at 34.5°N, 125.65°E, it varied with tidal periodshowing peaks during the spring tide. The area also showed inphasefor the Mm and Mf components with 0.9–1.5 °C of amplitude,and especially the phase distribution of Mf showed the elongatedcirculararound the lowest temperature area, indicating that thetidal mixing could be a major factor of this phenomenon. Themaximum LSST area were 2.69×104, 8.71×103, and 2.62×103 km2for the correlation coefficients 0.85, 0.90 and 0.95, respectively.

술잔 (酒杯) 명칭의 낱말밭 고찰

강기룡 우리어문학회 1993 우리어문연구 Vol.6,7 No.1

경기만 근해에서 풍파의 특성 변화

강기룡,현유경,이상룡,Kang, Ki-Ryong,Hyun, Yu-Kyung,Lee, Sang-Ryong 한국해양학회 2007 바다 Vol.12 No.4

본 연구에서는 경기만 근해 - 격렬비도와 덕적도 해역을 중심으로 - 에서 관측된 파랑 및 바람자료를 이용하여 바람과 파랑의 상호작용을 연구하였다. 2005년 1월에서 12월의 덕적도 부이 관측자료를 바탕으로 바람에 의한 파랑의 발생과 또 발생된 파랑에 의한 바람의 감쇄효과를 계산하였으며, 2005년 3월 19-26일과 5월 23-28일에 격렬비도 근해에서 관측된 자료를 이용하여 파랑이 발달할 때와 잔잔한 상태가 유지 될 때를 나누어 파랑 스펙트럼의 반응형태를 알아보았다. 또한, 시간에 따른 스펙트럼의 형태, 최대 에너지 주파수, 평형 영역의 기울기 등도 분석하였다. 관측풍속 $5-10ms^{-1}$의 범위에서 파랑에 의한 풍속의 감소는 최대 $2ms^{-1}$(응력${\sim}0.1Nm^{-2}$)를 보였고, $10-15ms^{-1}$일 때는 $3ms^{-1}$(응력${\sim}0.4Nm^{-2}$)의 차이를 보였다. 풍속과 파고의 상관분석에서도 관측풍속과 파고의 영향을 고려한 풍속(참풍속)의 경우 선형적인 상관도가 0.71에서 0.75로 약 0.04 정도 상승하였다. 잔잔한 상태에서 파랑이 발생할때 초기에는 4-5초의 단주기 파랑이 형성되고 발달과정을 거치면서 9-10초 주기의 장주기로 이동하며, 최대 에너지 주파주는 일정한 값을 유지하게 된다. 이 상태에 도달하는데 소요되는 시간은 약 6-7시간 정도였다. 또한 스펙트럼의 평형 영역 기울기는 파랑발생 초기에는 변화폭이 존재하나 풍파가 발달하면서 약 4.11의 값으로 접근하였다. 파랑 스펙트럼의 주파수대별 시간 변동과 마찰 속도와의 상관성에 있어 파랑 스펙트럼의 최대 에너지 주파수대 부근에서 높은 상관성을 보이는 경향을 보였으며 0.3 Hz와 0.35 Hz 에서 평균 0.80과 0.82 상관도를 보였다. The wind-wave interaction around the Kyung-gi Bay, Korea, was studied using the observed data from ocean buoy at DeuckJeuck-Do from Jan. to Dec., 2005, and from waverider data at KeuckYeulBee-Do on Mar. 19-26 and May 23-28, 2005. Wind-driven surface waves and wave-driven wind speed decrease were estimated from the ocean buoy data, and the characteristics of wave spectrum response were also investigated from the waverider data for the wave developing and calm stages of sea surface, including the time series of spectrum pattern change, frequency trend of the maximum energy level and spectrum slope for the equilibrium state range. The wind speed difference between before and after considering the wave effect was about $2ms^{-1}$ (wind stress ${\sim}0.1Nm^{-2}$) for the wind speed range $5-10ms^{-1}$ and about $3ms^{-1}$ (wind stress ${\sim}0.4Nm^{-2}$) for the wind speed range $10-15ms^{-1}$. Correlation coefficient between wind and wave height was increased from 0.71 to 0.75 after the wave effect considered on the observed wind speed. When surface waves were generated by wind, the initial waves were short waves about 4-5 sec in period and become in gradual longer period waves about 9-10 sec. For the developed wave, the frequency of maximum energy was showed a constant value taking 6-7 hours to reach at the state. The spectrum slope for the equilibrium state range varied with an amplitude in the initial stage of wave developing, however it finally became a constant value 4.11. Linear correlation between the frictional velocity and wave spectrum for each frequency showed a trend of higher correlation coefficient at the frequency of the maximum energy level. In average, the correlation coefficients were 0.80 and 0.82 for the frequencies 0.30 Hz and 0.35 Hz, respectively.

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강기룡 산업연구원 2018 월간 KIET 산업경제 Vol.- No.241

A Study of Estuarine Flow using the Roving ADCP Data

강기룡,Daniela Di Iorio 한국해양과학기술원 2008 Ocean science journal Vol.43 No.2

A study of estuarine flows during a neap tide was performed using 13-hour roving acoustic Doppler current profiles (ADCP) and conductivity-temperature-depth (CTD) profiles in the Altamaha River estuary, Georgia, U.S.A. The least-squared harmonic analysis method was used to fit the tidal (M2) component and separate the flow into two components: the tidal and residual (M2-removed) flows. We applied this method to depth-averaged data. Results show that the M2 component demonstrates over 95% of the variability of observation data. As the flow was dominated by the M2 tidal component in a narrow channel, the tidal ellipse distribution was essentially a back-and-forth motion. The amplitude of M2 velocity component increased slightly from the river mouth (0.45 m/sec) to land (0.6 m/sec) and the phase showed fairly constant values in the center of the channel and rapidly decreasing values near the northern and southern shoaling areas. The residual flow and transport calculated from depth-averaged flow shows temporal variability over the tidal time scale. Strong landward flows appeared during slack waters which may be attributed to increased baroclinic forcing when turbulent mixing decreases.

2014년 8월 북서태평양에서의 태풍발생은?

강기룡,차유미,현유선,나인채,배재은,김은선,윤원태 한국기상학회 2014 한국기상학회 학술대회 논문집 Vol.2014 No.10

파시즘 生成要因論과 그 批判

姜基龍,李瑛雨 경북대학교 평화문제연구소 1995 평화연구 Vol.20 No.-