Paul Kinzel
Paul Kinzel is a Hydrologist with the USGS Water Resources Mission Area.
Education
M.S. in Civil Engineering, University of Colorado, Boulder, May 1998
B.S. in Environmental Science, State University of New York, Plattsburgh, May 1995
Science and Products
Clear Creek Reservoir Bathymetry
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. The equipment and methods used in this study allowed water-resource managers to maintain typical reservoir operations, eliminating...
Filter Total Items: 45
Field measurements of water depth and remotely sensed data from the Mulchatna River, Alaska, collected July 12-August 14, 2024 Field measurements of water depth and remotely sensed data from the Mulchatna River, Alaska, collected July 12-August 14, 2024
This data release provides field measurements of water depth and aerial and satellite images from the Mulchatna River in Alaska. These data were used to assess the feasibility of mapping the bathymetry of this remote, proglacial river, located in Lake Clark National Park and Preserve, using several depth retrieval algorithms. This approach could facilitate geomorphic and habitat...
In situ measurements of water depth collected with acoustic Doppler current profilers and remotely sensed depths acquired with a software-defined radar deployed from an uncrewed aircraft system, Sacramento River, California, September 18-19, 2024 In situ measurements of water depth collected with acoustic Doppler current profilers and remotely sensed depths acquired with a software-defined radar deployed from an uncrewed aircraft system, Sacramento River, California, September 18-19, 2024
A reach of the Sacramento River near Glenn, California, was selected as a field site to test the performance of a software-defined radar (SDRadar) developed by the University of Southern California. The SDRadar can be deployed from an uncrewed aircraft system (UAS) and is designed to measure river depth. This data release contains measurements of river depth collected with two different...
Orthomosaic maps of the Clackamas River, Oregon, produced from images acquired April 16-18, 2024 Orthomosaic maps of the Clackamas River, Oregon, produced from images acquired April 16-18, 2024
A Cessna 182 fixed-wing aircraft equipped with a multispectral camera was used to collect aerial imagery of selected river reaches within the Willamette River Integrated Water Science basin in Oregon. On April 16-18, 2024, image acquisition was focused on four reaches of the Clackamas River. Photogrammetry techniques were applied to the images consisting of visible or red, green, and...
Remotely sensed data, field measurements, and MATLAB code used to produce image-derived velocity maps for a reach of the Sacramento River near Glenn, CA, September 16-19, 2024 Remotely sensed data, field measurements, and MATLAB code used to produce image-derived velocity maps for a reach of the Sacramento River near Glenn, CA, September 16-19, 2024
This data release provides remotely sensed data, field measurements, and MATLAB code associated with an effort to produce image-derived velocity maps for a reach of the Sacramento River in California's Central Valley. Data collection occurred from September 16-19, 2024, and involved cooperators from the Intelligent Robotics Group from the National Aeronautics and Space Administration...
Thermal imagery acquired from an Uncrewed Aerial System (UAS) and hydroacoustic measurements of flow velocity collected along the Sacramento River, California, November, 2023 Thermal imagery acquired from an Uncrewed Aerial System (UAS) and hydroacoustic measurements of flow velocity collected along the Sacramento River, California, November, 2023
A reach of the Sacramento River near Glenn, California, was selected as a field site to test a sensor payload developed by the U.S. Geological Survey and the National Aeronautics and Space Administration for estimating surface flow velocities in rivers. The payload, called the River Observing System (RiOS), can be deployed from an uncrewed aircraft system (UAS). RiOS includes visible and...
Unoccupied Aerial System-mounted image velocimetry and Doppler velocity radar data for computation of river velocity and discharge collected at seven locations in Colorado in 2023 Unoccupied Aerial System-mounted image velocimetry and Doppler velocity radar data for computation of river velocity and discharge collected at seven locations in Colorado in 2023
A series of field measurements of surface water velocity derived from video and Doppler velocity radar collected by small unoccupied aircraft systems (sUAS) and portable sensors were collected at seven locations in Colorado, USA, during the summer of 2023. The measurements were utilized to compute surface velocity and discharge using the Probability Concept, Large-Scale Particle Image...
Site visit cross section surveys and multispectral image data from gaging stations throughout the Willamette and Delaware River Basins from 2022 and code for Bathymetric Mapping using Gage Records and Image Databases (BaMGRID) Site visit cross section surveys and multispectral image data from gaging stations throughout the Willamette and Delaware River Basins from 2022 and code for Bathymetric Mapping using Gage Records and Image Databases (BaMGRID)
This data release includes cross section survey data collected during site visits to USGS gaging stations located throughout the Willamette and Delaware River Basins and multispectral images of these locations acquired as close in time as possible to the date of each site visit. In addition, MATLAB source code developed for the Bathymetric Mapping using Gage Records and Image Databases...
Helicopter-based videos and orthomosaic maps produced for Integrated Water Science basin riverine study sites, 2022 Helicopter-based videos and orthomosaic maps produced for Integrated Water Science basin riverine study sites, 2022
A Bell 407 helicopter with a gyro-stabilized gimbal was used to collect aerial videos of Integrated Water Science basin riverine study sites in 2022. Videos were collected using both natural color and thermal infrared cameras. These videos were used to determine the feasibility of estimating river surface velocity using aerial imagery. Orthomosaic maps were produced from the natural...
Remotely sensed data from a reach of the Sacramento River near Glenn, California, used to perform Particle Image Velocimetry (PIV) within the Robot Operating System (ROS) Remotely sensed data from a reach of the Sacramento River near Glenn, California, used to perform Particle Image Velocimetry (PIV) within the Robot Operating System (ROS)
This data release provides an example data set to accompany the manuscript titled "A Robot Operating System (ROS) package for mapping flow fields in rivers via Particle Image Velocimetry (PIV)", submitted to the journal Software X. This ROS *.bag file contains remotely sensed data acquired during an Uncrewed Aircraft System (UAS) flight along a reach of the Sacramento River near Glenn...
Hydrodynamic model output and image simulation code for evaluating image-based river velocimetry from a case study on the Sacramento River near Glenn, California Hydrodynamic model output and image simulation code for evaluating image-based river velocimetry from a case study on the Sacramento River near Glenn, California
This data release includes the data and code used for the paper titled "A framework to facilitate development and testing of image-based river velocimetry algorithms", published in the journal Earth Surface Processes and Landforms. Three *.csv files and five *.m files with MATLAB source code are included below. Each *.csv file contains output from a hydrodynamic model of a reach of the...
Bathymetric and topographic surveys of the Upper Colorado River, May 13, 2021, to July 26, 2023 Bathymetric and topographic surveys of the Upper Colorado River, May 13, 2021, to July 26, 2023
Bathymetric and topographic surveys were collected along an approximately 47-kilometer reach of the Colorado River beginning at the Pumphouse Recreation site and extending downstream to the USGS streamgage located near the Colorado River Road (Catamount) bridge. The surveys were collected using real-time kinematic Global Navigation Satellite System (GNSS) receivers by USGS personnel...
Cross-section geometry and sediment-size distribution data from the Upper Colorado River, April 6-8, 2022 Cross-section geometry and sediment-size distribution data from the Upper Colorado River, April 6-8, 2022
The U.S. Geological Survey collected geomorphic monitoring data in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group. This data release contains cross-section geometry and sediment-size distribution data collected from five sites on the Upper Colorado River, Colorado during April 6-8, 2022. The five sites selected for monitoring were located at the Pumphouse...
Bathymetry of Clear Creek Reservoir, Chaffee County, Colorado, 2016 Bathymetry of Clear Creek Reservoir, Chaffee County, Colorado, 2016
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. A bathymetry map of the reservoir is presented here with the elevation-surface area and the elevation-volume relations...
Bathymetry of the Hong and Luoc River Junction, Red River Delta, Vietnam, 2010 Bathymetry of the Hong and Luoc River Junction, Red River Delta, Vietnam, 2010
The U.S. Geological Survey, in collaboration with the Water Resources University in Hanoi, Vietnam, conducted a bathymetric survey of the junction of the Hong and Luoc Rivers. The survey was done to characterize the channel morphology of this delta distributary network and provide input for hydrodynamic and sediment transport models. The survey was carried out in December 2010 using a...
Filter Total Items: 66
Development and field testing of a UAS-based-software-defined radar for measuring freshwater bathymetry Development and field testing of a UAS-based-software-defined radar for measuring freshwater bathymetry
We provide an overview of an uncrewed aircraft system (UAS)-based software-defined radar (SDRadar) system for high-resolution geophysical observations. The radar transceiver is implemented on a Radio Frequency System-on-Chip (RFSoC) platform, along with an ultra-wideband Vivaldi antenna that has a starting operating frequency of 150 MHz, enabling the system to be used across different...
Authors
Sepehr Eskandari, Asem Melebari, Paul J. Kinzel, Robert Russell Lotspeich, Jack R. Eggleston, Mahta Moghaddam
The 2025 “Hacking Limnology” Workshop Series and DSOS Virtual Summit: A half decade of data-intensive aquatic science The 2025 “Hacking Limnology” Workshop Series and DSOS Virtual Summit: A half decade of data-intensive aquatic science
No abstract available.
Authors
Michael Frederick Meyer, Jorrit Mesman, Carolina C. Barbosa, Jonathan J Borelli, Johannes Feldbauer, Merritt Elizabeth Harlan, Robert T. Hensley, Burak Kuyumcu, Robert Ladwig, Isabella Oleksy, Rachel M. Pilla, Jacob Aaron Zwart, Matthew Biddle, Paul J. Kinzel, Carl J. Legleiter, Tadhg Moore, Tylar Murray, Lipa Nkwalale, Brandon Overstreet, Mehraz Rumman, Whitney M. Woelmer
Toward an efficient framework for remote sensing of river bathymetry: Comparing sensors and algorithms on an inaccessible proglacial river in Alaska Toward an efficient framework for remote sensing of river bathymetry: Comparing sensors and algorithms on an inaccessible proglacial river in Alaska
Remote sensing can provide reliable information on river depths and this approach might be particularly valuable in areas that are difficult to survey via conventional field methods. In this study, we assessed the potential to map the bathymetry of an inaccessible proglacial river in Alaska from both aerial orthophotos and a multispectral satellite image. In addition, we evaluated a...
Authors
Carl J. Legleiter, Christina M. Leonard, Paul A. Burger, Addison G. Pletcher, Paul J. Kinzel
Hyperspectral imaging of river bathymetry using an ensemble of regression trees Hyperspectral imaging of river bathymetry using an ensemble of regression trees
Remote sensing has emerged as an effective tool for characterizing river systems, and machine learning (ML) techniques could make this approach even more powerful. To explore this possibility, we developed an ML-based workflow for hyperspectral imaging of river bathymetry using an ensemble of regression trees (HIRBERT). This approach involves using paired observations of depth and...
Authors
Carl J. Legleiter, Paul J. Kinzel, Brandon Overstreet, Lee R. Harrison
A generalized framework for inferring river bathymetry from image-derived velocity fields A generalized framework for inferring river bathymetry from image-derived velocity fields
Although established techniques for remote sensing of river bathymetry perform poorly in turbid water, image velocimetry can be effective under these conditions. This study describes a framework for mapping both of these attributes: Depths Inferred from Velocities Estimated by Remote Sensing, or DIVERS. The workflow involves linking image-derived velocities to depth via a flow resistance...
Authors
Carl J. Legleiter, Paul J. Kinzel
Mapping river flow from thermal images in approximately real time: Proof of concept on the Sacramento River, California, USA Mapping river flow from thermal images in approximately real time: Proof of concept on the Sacramento River, California, USA
Image velocimetry has become an effective method of mapping flow conditions in rivers, but this analysis is typically performed in a post-processing mode after data collection is complete. In this study, we evaluated the potential to infer flow velocities in approximately real time as thermal images are being acquired from an uncrewed aircraft system (UAS). The sensitivity of thermal...
Authors
Carl J. Legleiter, Paul J. Kinzel, Michael Dille, Massimo Vespignani, Uland Wong, Isaac E Anderson, Elizabeth Hyde, Christopher L. Gazoorian, Jennifer Marie Cramer
Integrating depth measurements from gaging stations with image archives for spectrally based remote sensing of river bathymetry Integrating depth measurements from gaging stations with image archives for spectrally based remote sensing of river bathymetry
Remote sensing can be an effective tool for mapping river bathymetry, but the need for direct measurements to calibrate image-derived depth estimates impedes broader application of this approach. One way to circumvent the need for field campaigns dedicated to calibration is to capitalize upon existing data. In this study, we introduce a framework for Bathymetric Mapping using Gage...
Authors
Carl J. Legleiter, Brandon Overstreet, Paul J. Kinzel
Reach-scale mapping of surface flow velocities from thermal images acquired by an uncrewed aircraft system along the Sacramento River, California, USA Reach-scale mapping of surface flow velocities from thermal images acquired by an uncrewed aircraft system along the Sacramento River, California, USA
An innovative payload containing a sensitive mid-wave infrared camera was flown on an uncrewed aircraft system (UAS) to acquire thermal imagery along a reach of the Sacramento River, California, USA. The imagery was used as input for an ensemble particle image velocimetry (PIV) algorithm to produce near-continuous maps of surface flow velocity along a reach approximately 1 km in length...
Authors
Paul J. Kinzel, Carl J. Legleiter, Christopher L. Gazoorian
An enhanced and expanded Toolbox for River Velocimetry using Images from Aircraft (TRiVIA) An enhanced and expanded Toolbox for River Velocimetry using Images from Aircraft (TRiVIA)
Detailed, accurate information on flow patterns in river channels can improve understanding of habitat conditions, geomorphic processes, and potential hazards to help inform water management. Data describing flow patterns in river channels can be obtained efficiently via image-based techniques that have become more widely used in recent years as the number of platforms for acquiring...
Authors
Carl J. Legleiter, Paul J. Kinzel
A two-dimensional, reach-scale implementation of space-time image velocimetry (STIV) and comparison to particle image velocimetry (PIV) A two-dimensional, reach-scale implementation of space-time image velocimetry (STIV) and comparison to particle image velocimetry (PIV)
Image-based algorithms have become a powerful tool for estimating flow velocities in rivers. In this study, we generalize the space-time image velocimetry (STIV) framework for reach-scale application rather than along a cross section. The new algorithm provides information on both the magnitude and orientation of velocity vectors, and we refer to the algorithm as two-dimensional STIV, or...
Authors
Carl J. Legleiter, Paul J. Kinzel, Frank L. Engel, Lee R. Harrison, Gregory Hewitt
A framework to facilitate development and testing of image-based river velocimetry algorithms A framework to facilitate development and testing of image-based river velocimetry algorithms
Image-based methods have compelling, demonstrated potential for characterizing flow fields in rivers, but algorithms like particle image velocimetry (PIV) must be further tested and improved to enable more effective use of these techniques. This paper presents a framework designed for this exact purpose: Simulating Hydraulics and Images for Velocimetry Evaluation and Refinement (SHIVER)...
Authors
Carl J. Legleiter, Paul J. Kinzel
The Toolbox for River Velocimetry using Images from Aircraft (TRiVIA) The Toolbox for River Velocimetry using Images from Aircraft (TRiVIA)
Accurate knowledge of the speed at which water moves along a river is essential for understanding ecohydraulic processes and managing natural resources. Measuring flow velocity via remote sensing can be more efficient than conventional field methods, and powerful computational techniques for inferring velocity fields from videos or image time series have been developed. The development...
Authors
Carl J. Legleiter, Paul J. Kinzel
Science and Products
Clear Creek Reservoir Bathymetry
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. The equipment and methods used in this study allowed water-resource managers to maintain typical reservoir operations, eliminating...
Filter Total Items: 45
Field measurements of water depth and remotely sensed data from the Mulchatna River, Alaska, collected July 12-August 14, 2024 Field measurements of water depth and remotely sensed data from the Mulchatna River, Alaska, collected July 12-August 14, 2024
This data release provides field measurements of water depth and aerial and satellite images from the Mulchatna River in Alaska. These data were used to assess the feasibility of mapping the bathymetry of this remote, proglacial river, located in Lake Clark National Park and Preserve, using several depth retrieval algorithms. This approach could facilitate geomorphic and habitat...
In situ measurements of water depth collected with acoustic Doppler current profilers and remotely sensed depths acquired with a software-defined radar deployed from an uncrewed aircraft system, Sacramento River, California, September 18-19, 2024 In situ measurements of water depth collected with acoustic Doppler current profilers and remotely sensed depths acquired with a software-defined radar deployed from an uncrewed aircraft system, Sacramento River, California, September 18-19, 2024
A reach of the Sacramento River near Glenn, California, was selected as a field site to test the performance of a software-defined radar (SDRadar) developed by the University of Southern California. The SDRadar can be deployed from an uncrewed aircraft system (UAS) and is designed to measure river depth. This data release contains measurements of river depth collected with two different...
Orthomosaic maps of the Clackamas River, Oregon, produced from images acquired April 16-18, 2024 Orthomosaic maps of the Clackamas River, Oregon, produced from images acquired April 16-18, 2024
A Cessna 182 fixed-wing aircraft equipped with a multispectral camera was used to collect aerial imagery of selected river reaches within the Willamette River Integrated Water Science basin in Oregon. On April 16-18, 2024, image acquisition was focused on four reaches of the Clackamas River. Photogrammetry techniques were applied to the images consisting of visible or red, green, and...
Remotely sensed data, field measurements, and MATLAB code used to produce image-derived velocity maps for a reach of the Sacramento River near Glenn, CA, September 16-19, 2024 Remotely sensed data, field measurements, and MATLAB code used to produce image-derived velocity maps for a reach of the Sacramento River near Glenn, CA, September 16-19, 2024
This data release provides remotely sensed data, field measurements, and MATLAB code associated with an effort to produce image-derived velocity maps for a reach of the Sacramento River in California's Central Valley. Data collection occurred from September 16-19, 2024, and involved cooperators from the Intelligent Robotics Group from the National Aeronautics and Space Administration...
Thermal imagery acquired from an Uncrewed Aerial System (UAS) and hydroacoustic measurements of flow velocity collected along the Sacramento River, California, November, 2023 Thermal imagery acquired from an Uncrewed Aerial System (UAS) and hydroacoustic measurements of flow velocity collected along the Sacramento River, California, November, 2023
A reach of the Sacramento River near Glenn, California, was selected as a field site to test a sensor payload developed by the U.S. Geological Survey and the National Aeronautics and Space Administration for estimating surface flow velocities in rivers. The payload, called the River Observing System (RiOS), can be deployed from an uncrewed aircraft system (UAS). RiOS includes visible and...
Unoccupied Aerial System-mounted image velocimetry and Doppler velocity radar data for computation of river velocity and discharge collected at seven locations in Colorado in 2023 Unoccupied Aerial System-mounted image velocimetry and Doppler velocity radar data for computation of river velocity and discharge collected at seven locations in Colorado in 2023
A series of field measurements of surface water velocity derived from video and Doppler velocity radar collected by small unoccupied aircraft systems (sUAS) and portable sensors were collected at seven locations in Colorado, USA, during the summer of 2023. The measurements were utilized to compute surface velocity and discharge using the Probability Concept, Large-Scale Particle Image...
Site visit cross section surveys and multispectral image data from gaging stations throughout the Willamette and Delaware River Basins from 2022 and code for Bathymetric Mapping using Gage Records and Image Databases (BaMGRID) Site visit cross section surveys and multispectral image data from gaging stations throughout the Willamette and Delaware River Basins from 2022 and code for Bathymetric Mapping using Gage Records and Image Databases (BaMGRID)
This data release includes cross section survey data collected during site visits to USGS gaging stations located throughout the Willamette and Delaware River Basins and multispectral images of these locations acquired as close in time as possible to the date of each site visit. In addition, MATLAB source code developed for the Bathymetric Mapping using Gage Records and Image Databases...
Helicopter-based videos and orthomosaic maps produced for Integrated Water Science basin riverine study sites, 2022 Helicopter-based videos and orthomosaic maps produced for Integrated Water Science basin riverine study sites, 2022
A Bell 407 helicopter with a gyro-stabilized gimbal was used to collect aerial videos of Integrated Water Science basin riverine study sites in 2022. Videos were collected using both natural color and thermal infrared cameras. These videos were used to determine the feasibility of estimating river surface velocity using aerial imagery. Orthomosaic maps were produced from the natural...
Remotely sensed data from a reach of the Sacramento River near Glenn, California, used to perform Particle Image Velocimetry (PIV) within the Robot Operating System (ROS) Remotely sensed data from a reach of the Sacramento River near Glenn, California, used to perform Particle Image Velocimetry (PIV) within the Robot Operating System (ROS)
This data release provides an example data set to accompany the manuscript titled "A Robot Operating System (ROS) package for mapping flow fields in rivers via Particle Image Velocimetry (PIV)", submitted to the journal Software X. This ROS *.bag file contains remotely sensed data acquired during an Uncrewed Aircraft System (UAS) flight along a reach of the Sacramento River near Glenn...
Hydrodynamic model output and image simulation code for evaluating image-based river velocimetry from a case study on the Sacramento River near Glenn, California Hydrodynamic model output and image simulation code for evaluating image-based river velocimetry from a case study on the Sacramento River near Glenn, California
This data release includes the data and code used for the paper titled "A framework to facilitate development and testing of image-based river velocimetry algorithms", published in the journal Earth Surface Processes and Landforms. Three *.csv files and five *.m files with MATLAB source code are included below. Each *.csv file contains output from a hydrodynamic model of a reach of the...
Bathymetric and topographic surveys of the Upper Colorado River, May 13, 2021, to July 26, 2023 Bathymetric and topographic surveys of the Upper Colorado River, May 13, 2021, to July 26, 2023
Bathymetric and topographic surveys were collected along an approximately 47-kilometer reach of the Colorado River beginning at the Pumphouse Recreation site and extending downstream to the USGS streamgage located near the Colorado River Road (Catamount) bridge. The surveys were collected using real-time kinematic Global Navigation Satellite System (GNSS) receivers by USGS personnel...
Cross-section geometry and sediment-size distribution data from the Upper Colorado River, April 6-8, 2022 Cross-section geometry and sediment-size distribution data from the Upper Colorado River, April 6-8, 2022
The U.S. Geological Survey collected geomorphic monitoring data in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group. This data release contains cross-section geometry and sediment-size distribution data collected from five sites on the Upper Colorado River, Colorado during April 6-8, 2022. The five sites selected for monitoring were located at the Pumphouse...
Bathymetry of Clear Creek Reservoir, Chaffee County, Colorado, 2016 Bathymetry of Clear Creek Reservoir, Chaffee County, Colorado, 2016
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. A bathymetry map of the reservoir is presented here with the elevation-surface area and the elevation-volume relations...
Bathymetry of the Hong and Luoc River Junction, Red River Delta, Vietnam, 2010 Bathymetry of the Hong and Luoc River Junction, Red River Delta, Vietnam, 2010
The U.S. Geological Survey, in collaboration with the Water Resources University in Hanoi, Vietnam, conducted a bathymetric survey of the junction of the Hong and Luoc Rivers. The survey was done to characterize the channel morphology of this delta distributary network and provide input for hydrodynamic and sediment transport models. The survey was carried out in December 2010 using a...
Filter Total Items: 66
Development and field testing of a UAS-based-software-defined radar for measuring freshwater bathymetry Development and field testing of a UAS-based-software-defined radar for measuring freshwater bathymetry
We provide an overview of an uncrewed aircraft system (UAS)-based software-defined radar (SDRadar) system for high-resolution geophysical observations. The radar transceiver is implemented on a Radio Frequency System-on-Chip (RFSoC) platform, along with an ultra-wideband Vivaldi antenna that has a starting operating frequency of 150 MHz, enabling the system to be used across different...
Authors
Sepehr Eskandari, Asem Melebari, Paul J. Kinzel, Robert Russell Lotspeich, Jack R. Eggleston, Mahta Moghaddam
The 2025 “Hacking Limnology” Workshop Series and DSOS Virtual Summit: A half decade of data-intensive aquatic science The 2025 “Hacking Limnology” Workshop Series and DSOS Virtual Summit: A half decade of data-intensive aquatic science
No abstract available.
Authors
Michael Frederick Meyer, Jorrit Mesman, Carolina C. Barbosa, Jonathan J Borelli, Johannes Feldbauer, Merritt Elizabeth Harlan, Robert T. Hensley, Burak Kuyumcu, Robert Ladwig, Isabella Oleksy, Rachel M. Pilla, Jacob Aaron Zwart, Matthew Biddle, Paul J. Kinzel, Carl J. Legleiter, Tadhg Moore, Tylar Murray, Lipa Nkwalale, Brandon Overstreet, Mehraz Rumman, Whitney M. Woelmer
Toward an efficient framework for remote sensing of river bathymetry: Comparing sensors and algorithms on an inaccessible proglacial river in Alaska Toward an efficient framework for remote sensing of river bathymetry: Comparing sensors and algorithms on an inaccessible proglacial river in Alaska
Remote sensing can provide reliable information on river depths and this approach might be particularly valuable in areas that are difficult to survey via conventional field methods. In this study, we assessed the potential to map the bathymetry of an inaccessible proglacial river in Alaska from both aerial orthophotos and a multispectral satellite image. In addition, we evaluated a...
Authors
Carl J. Legleiter, Christina M. Leonard, Paul A. Burger, Addison G. Pletcher, Paul J. Kinzel
Hyperspectral imaging of river bathymetry using an ensemble of regression trees Hyperspectral imaging of river bathymetry using an ensemble of regression trees
Remote sensing has emerged as an effective tool for characterizing river systems, and machine learning (ML) techniques could make this approach even more powerful. To explore this possibility, we developed an ML-based workflow for hyperspectral imaging of river bathymetry using an ensemble of regression trees (HIRBERT). This approach involves using paired observations of depth and...
Authors
Carl J. Legleiter, Paul J. Kinzel, Brandon Overstreet, Lee R. Harrison
A generalized framework for inferring river bathymetry from image-derived velocity fields A generalized framework for inferring river bathymetry from image-derived velocity fields
Although established techniques for remote sensing of river bathymetry perform poorly in turbid water, image velocimetry can be effective under these conditions. This study describes a framework for mapping both of these attributes: Depths Inferred from Velocities Estimated by Remote Sensing, or DIVERS. The workflow involves linking image-derived velocities to depth via a flow resistance...
Authors
Carl J. Legleiter, Paul J. Kinzel
Mapping river flow from thermal images in approximately real time: Proof of concept on the Sacramento River, California, USA Mapping river flow from thermal images in approximately real time: Proof of concept on the Sacramento River, California, USA
Image velocimetry has become an effective method of mapping flow conditions in rivers, but this analysis is typically performed in a post-processing mode after data collection is complete. In this study, we evaluated the potential to infer flow velocities in approximately real time as thermal images are being acquired from an uncrewed aircraft system (UAS). The sensitivity of thermal...
Authors
Carl J. Legleiter, Paul J. Kinzel, Michael Dille, Massimo Vespignani, Uland Wong, Isaac E Anderson, Elizabeth Hyde, Christopher L. Gazoorian, Jennifer Marie Cramer
Integrating depth measurements from gaging stations with image archives for spectrally based remote sensing of river bathymetry Integrating depth measurements from gaging stations with image archives for spectrally based remote sensing of river bathymetry
Remote sensing can be an effective tool for mapping river bathymetry, but the need for direct measurements to calibrate image-derived depth estimates impedes broader application of this approach. One way to circumvent the need for field campaigns dedicated to calibration is to capitalize upon existing data. In this study, we introduce a framework for Bathymetric Mapping using Gage...
Authors
Carl J. Legleiter, Brandon Overstreet, Paul J. Kinzel
Reach-scale mapping of surface flow velocities from thermal images acquired by an uncrewed aircraft system along the Sacramento River, California, USA Reach-scale mapping of surface flow velocities from thermal images acquired by an uncrewed aircraft system along the Sacramento River, California, USA
An innovative payload containing a sensitive mid-wave infrared camera was flown on an uncrewed aircraft system (UAS) to acquire thermal imagery along a reach of the Sacramento River, California, USA. The imagery was used as input for an ensemble particle image velocimetry (PIV) algorithm to produce near-continuous maps of surface flow velocity along a reach approximately 1 km in length...
Authors
Paul J. Kinzel, Carl J. Legleiter, Christopher L. Gazoorian
An enhanced and expanded Toolbox for River Velocimetry using Images from Aircraft (TRiVIA) An enhanced and expanded Toolbox for River Velocimetry using Images from Aircraft (TRiVIA)
Detailed, accurate information on flow patterns in river channels can improve understanding of habitat conditions, geomorphic processes, and potential hazards to help inform water management. Data describing flow patterns in river channels can be obtained efficiently via image-based techniques that have become more widely used in recent years as the number of platforms for acquiring...
Authors
Carl J. Legleiter, Paul J. Kinzel
A two-dimensional, reach-scale implementation of space-time image velocimetry (STIV) and comparison to particle image velocimetry (PIV) A two-dimensional, reach-scale implementation of space-time image velocimetry (STIV) and comparison to particle image velocimetry (PIV)
Image-based algorithms have become a powerful tool for estimating flow velocities in rivers. In this study, we generalize the space-time image velocimetry (STIV) framework for reach-scale application rather than along a cross section. The new algorithm provides information on both the magnitude and orientation of velocity vectors, and we refer to the algorithm as two-dimensional STIV, or...
Authors
Carl J. Legleiter, Paul J. Kinzel, Frank L. Engel, Lee R. Harrison, Gregory Hewitt
A framework to facilitate development and testing of image-based river velocimetry algorithms A framework to facilitate development and testing of image-based river velocimetry algorithms
Image-based methods have compelling, demonstrated potential for characterizing flow fields in rivers, but algorithms like particle image velocimetry (PIV) must be further tested and improved to enable more effective use of these techniques. This paper presents a framework designed for this exact purpose: Simulating Hydraulics and Images for Velocimetry Evaluation and Refinement (SHIVER)...
Authors
Carl J. Legleiter, Paul J. Kinzel
The Toolbox for River Velocimetry using Images from Aircraft (TRiVIA) The Toolbox for River Velocimetry using Images from Aircraft (TRiVIA)
Accurate knowledge of the speed at which water moves along a river is essential for understanding ecohydraulic processes and managing natural resources. Measuring flow velocity via remote sensing can be more efficient than conventional field methods, and powerful computational techniques for inferring velocity fields from videos or image time series have been developed. The development...
Authors
Carl J. Legleiter, Paul J. Kinzel