Younggu Her
University of Florida
86 Papers
188 Citations
Younggu Her is an academic researcher from University of Florida. The author has contributed to research in topics: Environmental science & Watershed. The author has an hindex of 16, co-authored 71 publications. Previous affiliations of Younggu Her include American Society of Agricultural and Biological Engineers & Texas A&M University.
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Papers
Uncertainty in hydrological analysis of climate change: multi-parameter vs. multi-GCM ensemble predictions.
TL;DR: It is demonstrated that the impact ofmulti-GCM ensemble uncertainty on direct runoff projections for headwater watersheds could be an order of magnitude larger than that of multi-parameter ensemble uncertainty, suggesting that the selection of appropriate GCMs should be much more emphasized than that that of a parameter set among behavioral ones.
Impact of the numbers of observations and calibration parameters on equifinality, model performance, and output and parameter uncertainty
Younggu Her,Indrajeet Chaubey +1 more
TL;DR: In this paper, the authors investigated the impact of the number of observations and parameters on calibration quality including equifinality among calibrated parameter values, model performance, and output/parameter uncertainty using the Soil and Water Assessment Tool model.
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Threshold Effects in HRU Definition ofthe Soil and Water Assessment Tool
TL;DR: In this article, the authors found that applying commonly used thresholds in defining HRUs may lead to considerable loss of information about the watershed landscape, emphasizing larger soil types on smaller land covers once the land covers meet a threshold for land cover, and potentially changing average slopes.
115
Evaluation of random forest and regression tree methods for estimation of mass first flush ratio in urban catchments
TL;DR: In this article, the regression tree (RT) and random forest (RF) algorithms were used to predict the mass first flush ratio (MFFn) from seven rainfall-related variables.
69
Automatic Calibration Tool for Hydrologic Simulation Program-FORTRAN Using a Shuffled Complex Evolution Algorithm
TL;DR: In this paper, an automated calibration tool for HSPF (HSPF-SCE) was developed using the open source software R. The tool employs the shuffled complex evolution optimization algorithm (SCE-UA) to produce a pool of qualified calibration parameter sets from which the modeler chooses a single set of calibrated parameters.
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