Timothy O Hodson, Ph.D.
Timothy Hodson is a Hydrologist with the USGS Water Resources Mission Area.
Timothy Hodson earned his BS in Geology and Geophysics from the University of Wisconsin-Madison and his MS and PhD in Geology from Northern Illinois University. He is a hydrologist with the USGS Water Resources Mission Area in Urbana, Illinois, where his research applies probabilistic modeling, cloud computing, and information theory to study water resources.
Education and Certifications
Ph.D., Geology, Northern Illinois University
B.S., Geology and Geophysics, University of Wisconsin – Madison
Science and Products
Modeled Nutrient and Sediment Concentrations from Major Rivers in Illinois Based on Continuous Monitoring from October 1, 2015, through September 30, 2022
Annual Nutrient Loads at Illinois EPA Ambient Water Quality Monitoring Network Sites, Water Years 1976–2021
Daily streamflow performance benchmark defined by the standard statistical suite (v1.0) for the National Water Model Retrospective (v2.1) at benchmark streamflow locations (ver. 2.0, December 2022)
Daily streamflow performance benchmark defined by the standard statistical suite (v1.0) for the National Hydrologic Model application of the Precipitation-Runoff Modeling System (v1 byObs Muskingum) at benchmark streamflow locations in the conterminous Un
Daily streamflow performance benchmark defined by D-score (v0.1) for the National Hydrologic Model application of the Precipitation-Runoff Modeling System (v1 byObs Muskingum) at benchmark streamflow locations
Daily streamflow performance benchmark defined by D-score (v0.1) for the National Water Model Retrospective (v2.1) at benchmark streamflow locations
Estimated nutrient and sediment concentrations from major rivers in Illinois based on continuous monitoring from October 1, 2015, through September 30, 2021
Streamflow benchmark locations for hydrologic model evaluation within the conterminous United States (cobalt gages)
Modeled nutrient and sediment concentrations from the Des Plaines River at Route 53 at Joliet, Illinois, based on continuous monitoring from October 1, 2017, through September 30, 2020
Mean squared logarithmic error in daily mean streamflow predictions at GAGES-II reference streamgages
WRTDS-K nutrient and sediment loads at Illinois EPA Ambient Water Quality Monitoring Network sites, from WY 1978 through 2020
Modeled nutrient and sediment concentrations from major rivers in Illinois based on continuous monitoring from October 1, 2015, through September 30, 2020
Marine benthic habitat mapping of the West Arm, Glacier Bay National Park and Preserve, Alaska
Evaluating hydrologic model performance for sharacterizing streamflow drought in the conterminous United States
How to select an objective function using information theory
Ratingcurve: A Python package for fitting streamflow rating curves
Nitrate-nitrogen and total phosphorus river loads
Reproducibility starts at the source: R, Python, and Julia Packages for retrieving USGS hydrologic data
Spatial and temporal variations in phosphorus loads in the Illinois River Basin, Illinois USA
Root-mean-square error (RMSE) or mean absolute error (MAE): When to use them or not
Continuous monitoring of nutrient and sediment loads from the Des Plaines River at Route 53 at Joliet, Illinois, water years 2018–20
Mean squared error, deconstructed
Continuous monitoring and Bayesian estimation of nutrient and sediment loads from Illinois watersheds, for water years 2016–2020
Trends in nutrient and soil loss in Illinois rivers, 1978–2017
Southern Salish Sea Habitat Map Series: Admiralty Inlet
Non-USGS Publications**
TO Hodson, RD Powell, SA Brachfeld, S Tulaczyk, RP Scherer, WS Team
Earth and Planetary Science Letters 444, 56-63
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Modeled Nutrient and Sediment Concentrations from Major Rivers in Illinois Based on Continuous Monitoring from October 1, 2015, through September 30, 2022
Annual Nutrient Loads at Illinois EPA Ambient Water Quality Monitoring Network Sites, Water Years 1976–2021
Daily streamflow performance benchmark defined by the standard statistical suite (v1.0) for the National Water Model Retrospective (v2.1) at benchmark streamflow locations (ver. 2.0, December 2022)
Daily streamflow performance benchmark defined by the standard statistical suite (v1.0) for the National Hydrologic Model application of the Precipitation-Runoff Modeling System (v1 byObs Muskingum) at benchmark streamflow locations in the conterminous Un
Daily streamflow performance benchmark defined by D-score (v0.1) for the National Hydrologic Model application of the Precipitation-Runoff Modeling System (v1 byObs Muskingum) at benchmark streamflow locations
Daily streamflow performance benchmark defined by D-score (v0.1) for the National Water Model Retrospective (v2.1) at benchmark streamflow locations
Estimated nutrient and sediment concentrations from major rivers in Illinois based on continuous monitoring from October 1, 2015, through September 30, 2021
Streamflow benchmark locations for hydrologic model evaluation within the conterminous United States (cobalt gages)
Modeled nutrient and sediment concentrations from the Des Plaines River at Route 53 at Joliet, Illinois, based on continuous monitoring from October 1, 2017, through September 30, 2020
Mean squared logarithmic error in daily mean streamflow predictions at GAGES-II reference streamgages
WRTDS-K nutrient and sediment loads at Illinois EPA Ambient Water Quality Monitoring Network sites, from WY 1978 through 2020
Modeled nutrient and sediment concentrations from major rivers in Illinois based on continuous monitoring from October 1, 2015, through September 30, 2020
Marine benthic habitat mapping of the West Arm, Glacier Bay National Park and Preserve, Alaska
Evaluating hydrologic model performance for sharacterizing streamflow drought in the conterminous United States
How to select an objective function using information theory
Ratingcurve: A Python package for fitting streamflow rating curves
Nitrate-nitrogen and total phosphorus river loads
Reproducibility starts at the source: R, Python, and Julia Packages for retrieving USGS hydrologic data
Spatial and temporal variations in phosphorus loads in the Illinois River Basin, Illinois USA
Root-mean-square error (RMSE) or mean absolute error (MAE): When to use them or not
Continuous monitoring of nutrient and sediment loads from the Des Plaines River at Route 53 at Joliet, Illinois, water years 2018–20
Mean squared error, deconstructed
Continuous monitoring and Bayesian estimation of nutrient and sediment loads from Illinois watersheds, for water years 2016–2020
Trends in nutrient and soil loss in Illinois rivers, 1978–2017
Southern Salish Sea Habitat Map Series: Admiralty Inlet
Non-USGS Publications**
TO Hodson, RD Powell, SA Brachfeld, S Tulaczyk, RP Scherer, WS Team
Earth and Planetary Science Letters 444, 56-63
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.