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Kidoo Park, Yeongjeong Seong, Younghun Jung, Ilro Youn and Cheon Kyu Choi
The methods for improving the accuracy of water level prediction were proposed in this study by selecting the Gated Recurrent Unit (GRU) model, which is effective for multivariate learning at the Paldang Bridge station in Han River, South Korea, where th...
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Kidoo Park, Younghun Jung, Yeongjeong Seong and Sanghyup Lee
Since predicting rapidly fluctuating water levels is very important in water resource engineering, Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU) were used to evaluate water-level-prediction accuracy at Hangang Bridge Station in Han River, ...
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Younghun Jung, Ju-Young Shin, Hyunjun Ahn and Jun-Haeng Heo
The spatial and temporal structures of extreme rainfall trends in South Korea are investigated in the current study. The trends in the annual maximum rainfall series are detected and their spatial distribution is analyzed. The scaling exponent is employe...
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Younghun Jung, Yongchul Shin, Nam-Il Won and Kyoung Jae Lim
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Distinct seasonal characteristics of monsoon climate significantly affect river streamflow in South Korea. The roles of direct runoff and baseflow on streamflow have become more important to ecosystems and human communities in various watersheds of South...
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Jichul Ryu, Won Seok Jang, Jonggun Kim, Younghun Jung, Bernard A. Engel, Kyoung Jae Lim
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The Long Term Hydrologic Impact Assessment (L-THIA) model was previously improved by incorporating direct runoff lag time and baseflow. However, the improved model, called the L-THIA asymptotic curve number (ACN) model cannot simulate pollutant loads fro...
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Yongchul Shin, Kyoung Jae Lim, Kyungwon Park, Younghun Jung
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Several inversion modeling-based approaches have been developed/used to extract soil hydraulic properties (a, n, ?res, ?sat, Ksat) from remotely sensed (RS) soil moisture footprints. Hydrological models with shallow ground water (SGW) table depths in soi...
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Younghun Jung, Dongkyun Kim, Dongwook Kim, Munmo Kim and Seung Oh Lee
This study suggests an approach to obtain flood extent boundaries using spatial analysis based on Landsat-5 Thematic Mapper imageries and the digital elevation model. The suggested approach firstly extracts the flood inundation areas using the ISODATA im...
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Seung Oh Lee, Sooyoung Kim, Moonil Kim, Kyoung Jae Lim and Younghun Jung
Algal blooms have threatened the environmental functions of artificial seawater canals. Generally, water quality in a canal is managed by periodically circulating water from the sea into the canal. However, hydraulic characteristics from the canal design...
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Gwanjae Lee, Yongchul Shin and Younghun Jung
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Won Seok Jang, Jonggun Kim, Bernard A. Engel, Sung Won Kang, Youngkon Park, Heetaek Yoon, Kyoung Jae Lim, Younghun Jung and Yongchul Shin
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