Young‐Il Moon
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View article: Optimizing urban flood management: enhancing urban drainage system efficiency under extreme rainfall events
Optimizing urban flood management: enhancing urban drainage system efficiency under extreme rainfall events Open
Extreme rainfall events, particularly those induced by tropical cyclones, pose a heightened risk to the urban drainage system (UDS). Existing UDSs, having been established long ago, often fail to account for the extreme rainfall caused by …
View article: Assessing future urban flood hazard: A comprehensive approach to estimating the implications of future rainfall scenarios
Assessing future urban flood hazard: A comprehensive approach to estimating the implications of future rainfall scenarios Open
Estimating potential changes in future flood patterns based on anticipated changes in hydrological characteristics within the basin is crucial for mitigating flood damage and managing flood risk. In this study, nonparametric probability mo…
View article: Third-order exceptional point in an ion-cavity system
Third-order exceptional point in an ion-cavity system Open
We investigate a scheme for observing the third-order exceptional point (EP3) in an ion-cavity setting. In the lambda-type level configuration, the ion is driven by a pump field, and the resonator is probed with another weak laser field. W…
View article: Urban flood forecasting using a hybrid modeling approach based on a deep learning technique
Urban flood forecasting using a hybrid modeling approach based on a deep learning technique Open
Climate change is contributing to the increasing frequency and severity of flooding worldwide. Therefore, forecasting and preparing for floods while considering extreme climate conditions are essential for decision-makers to prevent and ma…
View article: Flooding time nomograph for urban river flood prediction: Case study of Dorim stream basin, Seoul
Flooding time nomograph for urban river flood prediction: Case study of Dorim stream basin, Seoul Open
Global climate change is intensifying flood damage in urban rivers. Notably, most small and medium‐sized urban rivers have a brief concentration period and are highly vulnerable to sudden heavy rains that lead to a rapid increase in water …
View article: Ion trap with gold-plated alumina: substrate and surface characterization
Ion trap with gold-plated alumina: substrate and surface characterization Open
We describe a complete development process of a segmented-blade linear ion trap. Alumina substrate is characterized with an X-ray diffraction and loss-tangent measurement. The blade is laser-micromachined and polished, followed by the sput…
View article: Drought Forecasting for Decision Makers Using Water Balance Analysis and Deep Neural Network
Drought Forecasting for Decision Makers Using Water Balance Analysis and Deep Neural Network Open
Reliable damage forecasting from droughts, which mainly stem from a spatiotemporal imbalance in rainfall, is critical for decision makers to formulate adaptive measures. The requirements of drought forecasting for decision makers are as fo…
View article: Development and Application of an Urban Flood Forecasting and Warning Process to Reduce Urban Flood Damage: A Case Study of Dorim River Basin, Seoul
Development and Application of an Urban Flood Forecasting and Warning Process to Reduce Urban Flood Damage: A Case Study of Dorim River Basin, Seoul Open
Early and accurate flood forecasting and warning for urban flood risk areas is an essential factor to reduce flood damage. This paper presents the urban flood forecasting and warning process to reduce damage in the main flood risk area of …
View article: Statistical Prediction of Typhoon-Induced Rainfall over China Using Historical Rainfall, Tracks, and Intensity of Typhoon in the Western North Pacific
Statistical Prediction of Typhoon-Induced Rainfall over China Using Historical Rainfall, Tracks, and Intensity of Typhoon in the Western North Pacific Open
Typhoons or mature tropical cyclones (TCs) can affect inland areas of up to hundreds of kilometers with heavy rains and strong winds, along with landslides causing numerous casualties and property damage due to concentrated precipitation o…
View article: Integrated Flood Forecasting and Warning System against Flash Rainfall in the Small-Scaled Urban Stream
Integrated Flood Forecasting and Warning System against Flash Rainfall in the Small-Scaled Urban Stream Open
The flood forecasting and warning system enable an advanced warning of flash floods and inundation depths for disseminating alarms in urban areas. Therefore, in this study, we developed an integrated flood forecasting and warning system co…
View article: Evaluating robustness of dynamic reservoir management under diverse climatic uncertainties: Application to the Boryeong Reservoir in South Korea
Evaluating robustness of dynamic reservoir management under diverse climatic uncertainties: Application to the Boryeong Reservoir in South Korea Open
The implications of forecast-based reservoir operation have been considered to be innovative approaches to water management. Despite the advantages of forecast-based operations, climate-related uncertainty may discourage the utilization of…
View article: Flood forecasting system of urban areas in South Korea
Flood forecasting system of urban areas in South Korea Open
The needs of safety and the security of the homeland from unexpected natural disasters have been growing among people recently.Flood damages have been recorded every year and those damages are greater than the annual average of 2 billion U…
View article: Weighting assessment on evaluation indicators of dam rehabilitation using the AHP analysis
Weighting assessment on evaluation indicators of dam rehabilitation using the AHP analysis Open
본 연구에서는 기후변화로 인한 강우강도의 변화와 댐 시설물의 노후화에 따른 댐 안전성의 문제를 대비하기 위하여 댐 재개발 평가항목을 개발하였으며, 국내외 사례 및 문헌조사, 그리고 전문가 자문을 통해 각 평가항목에 대한 타당성 및 적합성 검토를 실시하고, 각 세부지표에 대한 정량적 평가기준을 선정하였다. 댐 재개발에 대한 항목별 중요도 산정을 위하여 설문조사를 실시하였으며, 평가항목간의 쌍대비교를 통해 응답자의 주관적 평가결…
View article: Assessment of uncertainty associated with parameter of gumbel probability density function in rainfall frequency analysis
Assessment of uncertainty associated with parameter of gumbel probability density function in rainfall frequency analysis Open
우리나라는 수공구조물 설계할 때 강우빈도해석과 강우-유출 모형으로 홍수량을 산정하여 사용하고 있다. 그러나 강우자료의 확률분포 및 자료 기간 등에 따른 매개변수 추정에 많은 불확실성이 존재하나 이를 고려한 해석은 이루어지지 않고 있다. 이러한 점에서 Gumbel 분포형과 확률가중모멘트법을 기준으로 확률강우량의 신뢰구간을 평가함과 동시에 매개변수의 불확실성을 평가하는데 있어서 우수한 성능을 발휘하는 Bayesian방법을 도입하…
View article: Warm Season Hydro-Meteorological Variability in South Korea Due to SSTA Pattern Changes in the Tropical Pacific Ocean Region
Warm Season Hydro-Meteorological Variability in South Korea Due to SSTA Pattern Changes in the Tropical Pacific Ocean Region Open
본 연구는 열대 태평양지역 ENSO (El $Ni{\tilde{n}}o$-Southern Oscillation) 패턴 변화에 따른 우리나라 여름철(June-September, JJAS) 지역 수문변동 영향 분석을 위하여, 우리나라 5대강 113개 중권역의 강수량과 유출량 자료를 대상으로 합성편차 분석(Composit Analysis, CA)과 Student's t-test에 의한 유의성 검정을 실시하였다. 분석 결과, 유역별…
View article: A Study on Estimation of Target Precipitation in Seoul using AWS minutely Rainfall Data
A Study on Estimation of Target Precipitation in Seoul using AWS minutely Rainfall Data Open
It is very important to decide probability precipitation that is used as hydraulic structure design and target rainfall for urban disaster prevention. Especially, National Emergency Management Agency (NAMA) announced target rainfall from p…