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Ahmed A. Hashem, Bernard A. Engel, Vincent F. Bralts, Gary W. Marek, Jerry E. Moorhead, Mohamed Rashad, Sherif Radwan and Prasanna H. Gowda
Evapotranspiration (ET) is one of the biggest data gaps in water management due to limited ET measurements, and further, spatial variability in ET is difficult to capture. Satellite-based ET estimation has great potential for water resources planning as ...
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Meiling Cheng, Yonggui Wang, Bernard Engel, Wanshun Zhang, Hong Peng, Xiaomin Chen and Han Xia
Accurate assessment of spatial and temporal precipitation is crucial for simulating hydrological processes in basins, but is challenging due to insufficient rain gauges. Our study aims to analyze different precipitation interpolation schemes and their pe...
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Won Seok Jang, Bernard Engel, Jon Harbor and Larry Theller
Groundwater management and protection has been facilitated by computational modeling of aquifer vulnerability and monitoring aquifers using groundwater sampling. The DRASTIC (Depth to water, Recharge, Aquifer media, Soil media, Topography, Impact of vado...
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Jichul Ryu, Won Seok Jang, Jonggun Kim, Younghun Jung, Bernard A. Engel, Kyoung Jae Lim
Pág. 1 - 17
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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Jichul Ryu, Won Seok Jang, Jonggun Kim, Joong Dae Choi, Bernard A. Engel, Jae E. Yang and Kyoung Jae Lim
In this study, 52 asymptotic Curve Number (CN) regression equations were developed for combinations of representative land covers and hydrologic soil groups. In addition, to overcome the limitations of the original Long-term Hydrologic Impact Assessment ...
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Jichul Ryu, Won Seok Jang, Jonggun Kim, Joong Dae Choi, Bernard A. Engel, Jae E. Yang and Kyoung Jae Lim
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Yinqin Zhang, Bernard Engel, Laurent Ahiablame and Junmin Liu
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Ji-Hong Jeon, Kyoung Jae Lim and Bernard A. Engel
Estimating surface runoff for ungauged watershed is an important issue. The Soil Conservation Service Curve Number (SCS-CN) method developed from long-term experimental data is widely used to estimate surface runoff from gaged or ungauged watersheds. Man...
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Ji-Hong Jeon, Chan-Gi Park and Bernard A. Engel
Global optimization methods linked with simulation models are widely used for automated calibration and serve as useful tools for searching for cost-effective alternatives for environmental management. A genetic algorithm (GA) and shuffled complex evolut...
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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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