Kristie Franz

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The Ensemble Streamflow Prediction (ESP) system, developed by the National Weather Service (NWS), uses conceptual hydrologic models and historical data to generate a set, or ensemble, of possible streamflow scenarios conditioned on the initial states of a given basin. Using this approach, simulated historical probabilistic forecasts were generated for 14(More)
Evapotranspiration (ET) is a key component of the water balance, especially in arid and semiarid regions. The current study takes advantage of spatially-distributed, near real-time information provided by satellite remote sensing to develop a regional scale ET product derived from remotely-sensed observations. ET is calculated by scaling PET estimated from(More)
The National Weather Service (NWS) uses the SNOW17 model to forecast snow accumulation and ablation processes in snow-dominated watersheds nationwide. Successful application of the SNOW17 relies heavily on site-specific estimation of model parameters. The current study undertakes a comprehensive sensitivity and uncertainty analysis of SNOW17 model(More)
[1] The current study evaluates the impacts of various sources of uncertainty involved in hydrologic modeling on parameter behavior and regionalization utilizing different Bayesian likelihood functions and the Differential Evolution Adaptive Metropolis (DREAM) algorithm. The developed likelihood functions differ in their underlying assumptions and treatment(More)
This dissertation is a study of groundwater-surface water interaction in terms of the travel time distribution framework applied to a tile-drained, agricultural landscape at the watershed scale. Specifically, we examined the two dimensional, steady state groundwater flow characterizing a shallow, unconfined aquifer at a representative watershed. A(More)
iv CHAPTER 1: GENERAL INTRODUCTION 1 Study Questions 6 Dissertation Organization 8 References 9 CHAPTER 2: QUANTIFYING IMPERVIOUS SURFACE CHANGES USING TIME SERIES PLANIMETRIC DATA FROM 1940 TO 2011 IN FOUR CENTRAL IOWA CITIES, U.S.A. 13 Abstract 13 Introduction 14 Materials and Methods 18 Results 23 Discussion 27 Conclusion 33 Acknowledgements 35(More)
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