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Stephen Hundt

Stephen Hundt is a hydrologist and modeler with the USGS Idaho Water Science Center in Boise, Idaho. He serves as the center's groundwater specialist.

Stephen is involved in a variety of groundwater and surface water studies throughout Idaho and other Western states. His primary expertise is in developing groundwater flow models as tools to support water resource management. Stephen is also interested in a wide range of hydrology-related topics including uncertainty and data worth assessment, data visualization, and common-pool resource management. Stephen enjoys using Python and R to build reproducible routines for his modeling and analysis tasks. 

Education and Certifications

  • M.S., Hydrology and Water Resources, 2014, University of Arizona

  • B.S., Environmental Economics and Policy, 2007, University of California, Berkeley

Affiliations and Memberships*

  • American Geophysical Union (AGU)

Science and Products

link
Still image from Treasure Valley hydrogeologic framework model animation

Groundwater-Flow Model for the Treasure Valley and Surrounding Area

in partnership with the Idaho Department of Water Resources (IDWR) and the Idaho Water Resource Board (IWRB), we are developing a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential human and climatic effects on groundwater for water-supply planning and management.
By
Idaho Water Science Center
link

Groundwater-Flow Model for the Treasure Valley and Surrounding Area

in partnership with the Idaho Department of Water Resources (IDWR) and the Idaho Water Resource Board (IWRB), we are developing a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential human and climatic effects on groundwater for water-supply planning and management.
Learn More

Sentinel-2 ACOLITE-DSF Aquatic Reflectance for the Conterminous United States

This dynamic data release presents an aquatic reflectance product with 20-meter spatial resolution derived from Sentinel-2 satellite imagery for the conterminous United States using the Atmospheric Correction for OLI “lite” (ACOLITE). Aquatic reflectance, noted Rhow in ACOLITE documentation, is defined here as unitless water-leaving radiance reflectance and represents the ratio of water...
By
Water Resources Mission Area

Data and archive for a groundwater flow model of the Treasure Valley aquifer system, southwestern Idaho, 1986-2015

This model archive contains the MODFLOW 6 model used to simulate groundwater flow in the Treasure Valley for 1986 through 2015. The simulated results are described in the associated U.S. Geological Survey Professional Paper xxxx. The model archive includes the MODFLOW 6 model, PEST parameter estimation files, and a collection of python scripts that were used to develop the model. The...
By
Idaho Water Science Center

Measurements of Discharge in Small, Low-Flowing Streams Using Multiple Techniques

The accompanying datasets include all field measurements collected as part of a study to evaluate multiple streamflow measurement techniques in small streams throughout the United States. Each individual dataset is paired with a metadata record describing the contents and purpose of that dataset.
By
Idaho Water Science Center

Water budget components for hydrologic regions and tribal lands: annual averages 1971-2000

Water budget components for 17 hydrologic regions of the United States which contain tribal lands and for the tribal lands within each of these regions. All values represent an average year based upon the years 1971-2000, and are the result of a combined analysis of national datasets.
By
Idaho Water Science Center

Compiled Database and Results of the Analysis of Multiple Groundwater-Quality Datasets for Idaho

Groundwater is an important source of drinking and irrigation water throughout Idaho, and groundwater quality is monitored by various Federal, State, and local agencies. The historical, multi-agency records of groundwater quality include a valuable dataset that has yet to be compiled or analyzed on a statewide level. The purpose of this study is to combine groundwater-quality data from...
By
Idaho Water Science Center

Groundwater-flow model of the Treasure Valley, southwestern Idaho, 1986–2015

Most of the population of the Treasure Valley and the surrounding area of southwestern Idaho and easternmost Oregon depends on groundwater for domestic supply, either from domestic or municipal-supply wells. Current and projected rapid population growth in the area has caused concern about the long-term sustainability of the groundwater resource. In 2016, the U.S. Geological Survey, in...
Authors
Stephen A. Hundt, James R. Bartolino
By
Water Resources Mission Area, Idaho Water Science Center

Mapping the probability of freshwater algal blooms with various spectral indices and sources of training data

Algal blooms are pervasive in many freshwater environments and can pose risks to the health and safety of humans and other organisms. However, monitoring and tracking of potentially harmful blooms often relies on in-person observations by the public. Remote sensing has proven useful in augmenting in situ observations of algal concentration, but many hurdles hinder efficient application...
Authors
Tyler Victor King, Stephen Hundt, Konrad Hafen, Victoria G. Stengel, Scott D. Ducar
By
Water Resources Mission Area, Idaho Water Science Center, Oklahoma-Texas Water Science Center

Evaluation of select velocity measurement techniques for estimating discharge in small streams across the United States

Multiple instruments and methods exist for collecting discrete streamflow measurements in small streams with low flows, defined here as less than 5.7 m3/s (200 ft3/s). Included in the available methods are low-cost approaches that are infrequently used, in part, because their uncertainty is not well known. In this work, we evaluated the accuracy and suitability of three low-cost velocity...
Authors
Tyler Victor King, Stephen Hundt, Amy E. Simonson, Kyle W. Blasch
By
Water Resources Mission Area, Idaho Water Science Center, New York Water Science Center

Laboratory assessment of alternative stream velocity measurement methods

Understanding streamflow in montane watersheds on regional scales is often incomplete due to a lack of data for small-order streams that link precipitation and snowmelt processes to main stem discharge. This data deficiency is attributed to the prohibitive cost of conventional streamflow measurement methods and the remote location of many small streams. Expedient and low-cost streamflow...
Authors
Stephen Hundt, Kyle W. Blasch
By
Water Resources Mission Area, Idaho Water Science Center

Streamflow contributions from tribal lands to major river basins of the United States

While many studies on tribal water resources of individual tribal lands in the United States (US) have been conducted, the importance of tribal water resources at a national scale has largely gone unrecognized because their combined totals have not been quantified. Thus, we sought to provide a numerical estimate of major water budget components on tribal lands within the conterminous US...
Authors
Kyle W. Blasch, Stephen Hundt, Patrick Wurster, Roy Sando, Antony Berthelote
By
Water Resources Mission Area, Idaho Water Science Center

Compilation and analysis of multiple groundwater-quality datasets for Idaho

Groundwater is an important source of drinking and irrigation water throughout Idaho, and groundwater quality is monitored by various Federal, State, and local agencies. The historical, multi-agency records of groundwater quality include a valuable dataset that has yet to be compiled or analyzed on a statewide level. The purpose of this study is to combine groundwater-quality data from...
Authors
Stephen A. Hundt, Candice B. Hopkins
By
Water Resources Mission Area, Idaho Water Science Center

Science and Products

link
Still image from Treasure Valley hydrogeologic framework model animation

Groundwater-Flow Model for the Treasure Valley and Surrounding Area

in partnership with the Idaho Department of Water Resources (IDWR) and the Idaho Water Resource Board (IWRB), we are developing a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential human and climatic effects on groundwater for water-supply planning and management.
By
Idaho Water Science Center
link

Groundwater-Flow Model for the Treasure Valley and Surrounding Area

in partnership with the Idaho Department of Water Resources (IDWR) and the Idaho Water Resource Board (IWRB), we are developing a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential human and climatic effects on groundwater for water-supply planning and management.
Learn More

Sentinel-2 ACOLITE-DSF Aquatic Reflectance for the Conterminous United States

This dynamic data release presents an aquatic reflectance product with 20-meter spatial resolution derived from Sentinel-2 satellite imagery for the conterminous United States using the Atmospheric Correction for OLI “lite” (ACOLITE). Aquatic reflectance, noted Rhow in ACOLITE documentation, is defined here as unitless water-leaving radiance reflectance and represents the ratio of water...
By
Water Resources Mission Area

Data and archive for a groundwater flow model of the Treasure Valley aquifer system, southwestern Idaho, 1986-2015

This model archive contains the MODFLOW 6 model used to simulate groundwater flow in the Treasure Valley for 1986 through 2015. The simulated results are described in the associated U.S. Geological Survey Professional Paper xxxx. The model archive includes the MODFLOW 6 model, PEST parameter estimation files, and a collection of python scripts that were used to develop the model. The...
By
Idaho Water Science Center

Measurements of Discharge in Small, Low-Flowing Streams Using Multiple Techniques

The accompanying datasets include all field measurements collected as part of a study to evaluate multiple streamflow measurement techniques in small streams throughout the United States. Each individual dataset is paired with a metadata record describing the contents and purpose of that dataset.
By
Idaho Water Science Center

Water budget components for hydrologic regions and tribal lands: annual averages 1971-2000

Water budget components for 17 hydrologic regions of the United States which contain tribal lands and for the tribal lands within each of these regions. All values represent an average year based upon the years 1971-2000, and are the result of a combined analysis of national datasets.
By
Idaho Water Science Center

Compiled Database and Results of the Analysis of Multiple Groundwater-Quality Datasets for Idaho

Groundwater is an important source of drinking and irrigation water throughout Idaho, and groundwater quality is monitored by various Federal, State, and local agencies. The historical, multi-agency records of groundwater quality include a valuable dataset that has yet to be compiled or analyzed on a statewide level. The purpose of this study is to combine groundwater-quality data from...
By
Idaho Water Science Center

Groundwater-flow model of the Treasure Valley, southwestern Idaho, 1986–2015

Most of the population of the Treasure Valley and the surrounding area of southwestern Idaho and easternmost Oregon depends on groundwater for domestic supply, either from domestic or municipal-supply wells. Current and projected rapid population growth in the area has caused concern about the long-term sustainability of the groundwater resource. In 2016, the U.S. Geological Survey, in...
Authors
Stephen A. Hundt, James R. Bartolino
By
Water Resources Mission Area, Idaho Water Science Center

Mapping the probability of freshwater algal blooms with various spectral indices and sources of training data

Algal blooms are pervasive in many freshwater environments and can pose risks to the health and safety of humans and other organisms. However, monitoring and tracking of potentially harmful blooms often relies on in-person observations by the public. Remote sensing has proven useful in augmenting in situ observations of algal concentration, but many hurdles hinder efficient application...
Authors
Tyler Victor King, Stephen Hundt, Konrad Hafen, Victoria G. Stengel, Scott D. Ducar
By
Water Resources Mission Area, Idaho Water Science Center, Oklahoma-Texas Water Science Center

Evaluation of select velocity measurement techniques for estimating discharge in small streams across the United States

Multiple instruments and methods exist for collecting discrete streamflow measurements in small streams with low flows, defined here as less than 5.7 m3/s (200 ft3/s). Included in the available methods are low-cost approaches that are infrequently used, in part, because their uncertainty is not well known. In this work, we evaluated the accuracy and suitability of three low-cost velocity...
Authors
Tyler Victor King, Stephen Hundt, Amy E. Simonson, Kyle W. Blasch
By
Water Resources Mission Area, Idaho Water Science Center, New York Water Science Center

Laboratory assessment of alternative stream velocity measurement methods

Understanding streamflow in montane watersheds on regional scales is often incomplete due to a lack of data for small-order streams that link precipitation and snowmelt processes to main stem discharge. This data deficiency is attributed to the prohibitive cost of conventional streamflow measurement methods and the remote location of many small streams. Expedient and low-cost streamflow...
Authors
Stephen Hundt, Kyle W. Blasch
By
Water Resources Mission Area, Idaho Water Science Center

Streamflow contributions from tribal lands to major river basins of the United States

While many studies on tribal water resources of individual tribal lands in the United States (US) have been conducted, the importance of tribal water resources at a national scale has largely gone unrecognized because their combined totals have not been quantified. Thus, we sought to provide a numerical estimate of major water budget components on tribal lands within the conterminous US...
Authors
Kyle W. Blasch, Stephen Hundt, Patrick Wurster, Roy Sando, Antony Berthelote
By
Water Resources Mission Area, Idaho Water Science Center

Compilation and analysis of multiple groundwater-quality datasets for Idaho

Groundwater is an important source of drinking and irrigation water throughout Idaho, and groundwater quality is monitored by various Federal, State, and local agencies. The historical, multi-agency records of groundwater quality include a valuable dataset that has yet to be compiled or analyzed on a statewide level. The purpose of this study is to combine groundwater-quality data from...
Authors
Stephen A. Hundt, Candice B. Hopkins
By
Water Resources Mission Area, Idaho Water Science Center

*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government

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