Witold F. Krajewski
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View article: Evaluation of Radar-derived Polarimetric Precipitation Estimates for Extreme Rain Events Using a Dense Network of Rain Gauges
Evaluation of Radar-derived Polarimetric Precipitation Estimates for Extreme Rain Events Using a Dense Network of Rain Gauges Open
View article: Data-driven Super-Resolution of Flood Inundation Maps using Synthetic Simulations
Data-driven Super-Resolution of Flood Inundation Maps using Synthetic Simulations Open
The frequency of extreme flood events is increasing throughout the world. Daily, high-resolution (30m) Flood Inundation Maps (FIM) observed from space play a key role in informing mitigation and preparedness efforts to counter these extrem…
View article: GPM Ground Validation Iowa Flood Center (IFC) Stream Flow IFloodS
GPM Ground Validation Iowa Flood Center (IFC) Stream Flow IFloodS Open
View article: An integrated cyberinfrastructure system for water quality resources in the Upper Mississippi River Basin
An integrated cyberinfrastructure system for water quality resources in the Upper Mississippi River Basin Open
The Upper Mississippi Information System (UMIS) is a cyberinfrastructure framework designed to support large-scale real-time water-quality data integration, analysis, and visualization for the Upper Mississippi River Basin (UMRB). UMIS is …
View article: On the Optimized Management of Activated Distributed Storage Systems: A Novel Approach to Flood Mitigation
On the Optimized Management of Activated Distributed Storage Systems: A Novel Approach to Flood Mitigation Open
New flood records are being set across the world as precipitation patterns change due to a warming climate. Despite the presence of longstanding water management infrastructure like levees and reservoirs, this rise in flooding has been met…
View article: Effect of streamflow measurement error on flood frequency estimation
Effect of streamflow measurement error on flood frequency estimation Open
Significant errors often arise when measuring streamflow during high flows and flood events. Such errors conflated by short records of observations may induce bias in the flood frequency estimates, leading to costly engineering design mist…
View article: Effect of Streamflow Measurement Error on Flood Frequency Estimation
Effect of Streamflow Measurement Error on Flood Frequency Estimation Open
Significant errors often arise when measuring streamflow during high flows and flood events. Such errors conflated by short records of observations may induce bias in the flood frequency estimates, leading to costly engineering design mist…
View article: Assessing the Impact of Radar-Rainfall Uncertainty in Streamflow Prediction
Assessing the Impact of Radar-Rainfall Uncertainty in Streamflow Prediction Open
Nicolás Velásquez1, Witold F. Krajewski11IIHR-Hydrosciences & Engineering, Department of Civil and Environmental Engineering, The University of iowa, Iowa City, IA, USA.Corresponding author: Nicolás Velásquez ([email protected])This …
View article: UMIS: An Integrated Cyberinfrastructure System for Water Quality Resources in the Upper Mississippi River Basin
UMIS: An Integrated Cyberinfrastructure System for Water Quality Resources in the Upper Mississippi River Basin Open
The Upper Mississippi Information System (UMIS) is a cyberinfrastructure framework designed to support large-scale real-time water quality data integration, analysis, and visualization for the Upper Mississippi River Basin (UMRB). UMIS is …
View article: Disentangling the Sources of Uncertainties in the Projection of Flood Risk Across the Central United States (Iowa)
Disentangling the Sources of Uncertainties in the Projection of Flood Risk Across the Central United States (Iowa) Open
We explore the projected changes in flood impacts across Iowa (central United States) and the associated uncertainties by forcing a hydrologic model with downscaled global climate model outputs and four Shared Socioeconomic Pathways. Our r…
View article: Evaluation of CMIP6 HighResMIP for hydrologic modeling of annual maximum discharge in Iowa
Evaluation of CMIP6 HighResMIP for hydrologic modeling of annual maximum discharge in Iowa Open
View article: Correction to: Examining the stage-IV radar-rainfall product for Probabilistic rainfall estimation: case study over Iowa
Correction to: Examining the stage-IV radar-rainfall product for Probabilistic rainfall estimation: case study over Iowa Open
View article: Revisiting Turcotte’s approach: flood frequency analysis
Revisiting Turcotte’s approach: flood frequency analysis Open
Flood frequency estimation forms the basis for engineering design of hydraulic structures, including bridges and culverts, local and regional development planning, and flood insurance. In the United States, the Water Resources Council reco…
View article: Evaluation of CMIP6 HighResMIP for hydrologic modeling manuscript code
Evaluation of CMIP6 HighResMIP for hydrologic modeling manuscript code Open
View article: Interactive hydrological modelling and simulation on client-side web systems: an educational case study
Interactive hydrological modelling and simulation on client-side web systems: an educational case study Open
Computational hydrological models and simulations are fundamental pieces of the workflow of contemporary hydroscience research, education, and professional engineering activities. In support of hydrological modelling efforts, web-enabled t…
View article: Discharge and floods projected to increase more than precipitation extremes
Discharge and floods projected to increase more than precipitation extremes Open
Floods claim a high toll in fatalities and economic impacts. Despite their societal relevance, there is much more to learn about the projected changes in discharge and flooding. Here we force an operational hydrologic model over the state …
View article: Identification and Regionalization of Streamflow Routing Parameters Using Machine Learning for the HLM Hydrological Model in Iowa
Identification and Regionalization of Streamflow Routing Parameters Using Machine Learning for the HLM Hydrological Model in Iowa Open
We present a novel approach to determine spatially distributed routing parameters for the distributed hydrological Hillslope Link Model (HLM), an ordinary differential equations‐based streamflow forecasting model implemented and tested in …
View article: Discharge and Floods Projected to Increase More Than Precipitation Extremes
Discharge and Floods Projected to Increase More Than Precipitation Extremes Open
Floods claim a high toll in fatalities and economic impacts. Despite their societal relevance, there is much more to learn about the projected changes in discharge and flooding. Here we force an operational hydrologic model over the state …
View article: Interactive Hydrological Modelling and Simulation on Client-Side Web Systems: An Educational Case Study
Interactive Hydrological Modelling and Simulation on Client-Side Web Systems: An Educational Case Study Open
Computational hydrological models and simulations are fundamental pieces of the workflow of contemporary hydroscience research, education, and professional engineering activities. In support of hydrological modelling efforts, web-enabled t…
View article: Hydrologic investigations of radar-rainfall error propagation to rainfall-runoff model hydrographs
Hydrologic investigations of radar-rainfall error propagation to rainfall-runoff model hydrographs Open
View article: Improving Hillslope Link Model Performance from Non-Linear Representation of Natural and Artificially Drained Subsurface Flows
Improving Hillslope Link Model Performance from Non-Linear Representation of Natural and Artificially Drained Subsurface Flows Open
This study evaluates the potential for a newly proposed non-linear subsurface flux equation to improve the performance of the hydrological Hillslope Link Model (HLM). The equation contains parameters that are functionally related to the hi…
View article: Analyzing Effects of Crops on SMAP Satellite-based Soil Moisture using a Rainfall-Runoff Model in the U.S. Corn Belt
Analyzing Effects of Crops on SMAP Satellite-based Soil Moisture using a Rainfall-Runoff Model in the U.S. Corn Belt Open
L-band microwave satellite missions provide soil moisture information potentially useful for streamflow and hence flood predictions. However, these observations are also sensitive to the presence of vegetation that makes satellite soil moi…
View article: Analyzing Effects of Crops on SMAP Satellite-Based Soil Moisture Using a Rainfall–Runoff Model in the U.S. Corn Belt
Analyzing Effects of Crops on SMAP Satellite-Based Soil Moisture Using a Rainfall–Runoff Model in the U.S. Corn Belt Open
L-band microwave satellite missions provide soil moisture information potentially useful for streamflow and, hence, flood predictions. However, these observations are also sensitive to the presence of vegetation that makes satellite soil m…
View article: Real-time streamflow forecasting: AI vs. Hydrologic insights
Real-time streamflow forecasting: AI vs. Hydrologic insights Open
View article: Multi‐Scale Hydrologic Evaluation of the National Water Model Streamflow Data Assimilation
Multi‐Scale Hydrologic Evaluation of the National Water Model Streamflow Data Assimilation Open
Streamflow predictions derived from a hydrologic model are subjected to many sources of errors, including uncertainties in meteorological inputs, representation of physical processes, and model parameters. To reduce the effects of these un…
View article: On the Role of Atmospheric Simulations Horizontal Grid Spacing for Flood Modeling
On the Role of Atmospheric Simulations Horizontal Grid Spacing for Flood Modeling Open
Our study focuses on the hydrologic implications of resolving and modeling atmospheric processes at different spatial scales. Here we use heavy precipitation events from an atmospheric model that was run at different horizontal grid spacin…
View article: Insights into storm direction effect on flood response
Insights into storm direction effect on flood response Open
View article: Assessment of Streamflow Predictions Generated Using Multi-model and Multi-precipitation Product Forcing
Assessment of Streamflow Predictions Generated Using Multi-model and Multi-precipitation Product Forcing Open
This study assesses streamflow predictions generated by two distributed hydrologic models, the Hillslope Link Model (HLM) and the National Water Model (NWM), driven by three radar-based precipitation forcing datasets. These forcing data in…
View article: Analyzing Effects of Crops on SMAP Satellite-based Soil Moisture using a Rainfall-Runoff Model in the U.S. Corn Belt
Analyzing Effects of Crops on SMAP Satellite-based Soil Moisture using a Rainfall-Runoff Model in the U.S. Corn Belt Open
L-band microwave satellite missions provide soil moisture information potentially useful for streamflow and hence flood predictions. However, these observations are also sensitive to the presence of vegetation that makes satellite soil moi…
View article: Exploring the Potential of SMAP Soil Moisture for Improving Real-time Streamflow Prediction in the U.S. Corn Belt
Exploring the Potential of SMAP Soil Moisture for Improving Real-time Streamflow Prediction in the U.S. Corn Belt Open
L-band microwave satellite missions provide soil moisture information potentially useful for streamflow and hence flood predictions. However, these observations are also sensitive to the presence of vegetation that makes satellite soil moi…