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In 2019 the National Park Service began preparing for the relocation and upgrade of the Osceola (WI) boat ramp in the St. Croix National Scenic Riverway. Prior to construction, hydrographic/topographic surveys and benthic maps of the river bottom were desired to mitigate potential impacts to mussels or benthic habitat. Multibeam Echosounder Systems produce high-resolution bathymetry and backscatter data that can be used to obtain information about the sediment composition and physical properties of the riverbed. A suite of hydroacoustic products (e.g., bathymetry, topobathy, backscatter mosaic, measured river current velocities (ADCP), sidescan mosaic, and underwater images (ground truthing)) were combined to map...
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The National Park Service (NPS) partnered with the U.S. Geological Survey (USGS) to collect hydroacoustic data of the Mississippi River for the development of high-resolution bathymetry and sidescan imagery. The combined datasets will provide key components to characterizing benthic habitat. These information needs were highly desired by the NPS to more accurately assess environmental factors that influence native mussel distribution. The project was funded by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) Environment and Natural Resources Trust Fund (ENRTF), to help maintain and enhance Minnesota’s environment and natural resources. These data are part of a larger benthic mapping project to...
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Hydroacoustic (sonar) data were collected for the Mississippi, St. Croix, and Minnesota Rivers for the development of high-resolution bathymetry and sidescan imagery. Small areas containing priority mussel habitat had additional collection efforts to map water velocities and bottom composition. Combining these data in a GIS can provide key components to characterizing physical benthic habitat for native mussels in a riverine environment. This information is highly desired by the National Park Service to more accurately assess environmental factors that influence native mussel distribution. The collaborative effort was funded by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) Environment and Natural...
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic habitats of the Illinois River will be interpreted to support Asian carp research, monitoring and control. The entire study plan will consist of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange and Alton), will have priority areas and backwaters collected and analyzed first.
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic characteristics of the Illinois River have been interpreted to support Asian carp research, monitoring, and control. The study plan consisted of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange, and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange, and Alton), had areas prioritized for data collection and analysis.
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic characteristics of the Illinois River have been interpreted to support Asian carp research, monitoring, and control. The study plan consisted of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange, and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange, and Alton), had areas prioritized for data collection and analysis.
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic characteristics of the Illinois River have been interpreted to support Asian carp research, monitoring, and control. The study plan consisted of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange, and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange, and Alton), had areas prioritized for data collection and analysis.
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This dataset is a digital surface model of the slope for six sites where known rock structures exist in the St. Croix River. Slope is the gradient, or rate of maximum change in elevation, and is derived from the DEM. Slope measures will be used for investigating the use of hydroacoustic technologies for quantifying habitat for imperiled mussels Spectaclecase (Margaritifera monodonta) and Salamander (Simpsonaias ambigua) typically associated with rock structures (e.g., wing dams, revetment) in rivers. Slope is a driver of energy below the water and influences biotic diversity, distribution, and the functional traits of those biota. Slope is expressed in degrees; it calculates the maximum rate of change in value from...
Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic habitats of the Illinois River will be interpreted to support Asian carp research, monitoring and control. The entire study plan will consist of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange and Alton), will have priority areas and backwaters collected and analyzed first.
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic characteristics of the Illinois River have been interpreted to support Asian carp research, monitoring and control. The study plan consisted of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange and Alton), had areas prioritized for data collection and analysis.
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The U.S. Geological Survey (USGS) collected hydroacoustic data of the St. Croix River adjacent to the Osceola (WI) boat ramp for hydrographic and benthic mapping prior to the reconstruction project implemented by the National Park Service (NPS). This dataset contains predicted geologic substrate information that was interpreted from combined sonar datasets. The shapefile contains a general description of interpreted surficial bottom type with its associated class code in the attribute table. Benthic substrate maps provide important physical characteristics that can be used in habitat modeling to guide management planning of restoration and conservation efforts.
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic characteristics of the Illinois River have been interpreted to support Asian carp research, monitoring and control. The study plan consisted of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange and Alton), had areas prioritized for data collection and analysis.
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Hydroacoustic (sonar) data were collected for the Mississippi, St. Croix, and Minnesota Rivers for the development of high-resolution bathymetry and sidescan imagery. Small areas containing priority mussel habitat had additional collection efforts to map water velocities and bottom composition. Combining these data in a GIS can provide key components to characterizing physical benthic habitat for native mussels in a riverine environment. This information is highly desired by the National Park Service to more accurately assess environmental factors that influence native mussel distribution. The collaborative effort was funded by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) Environment and Natural...
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Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic characteristics of macro habitats in the Illinois River. Multibeam echosounders collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the East Pit of the Hanson Pits (where accessible) of the Marseilles reach June 27, 2018, and August 25, 2020.
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The U.S. Geological Survey (USGS) collected hydroacoustic data of the St. Croix River adjacent to the Osceola (WI) boat ramp for hydrographic and benthic mapping prior to the reconstruction project implemented by the National Park Service (NPS). High-resolution bathymetry data was surveyed using a multibeam sonar. The depth and characteristics of the riverbed are important parameters of habitat for benthic (bottom-dwelling) organisms, and are a fundamental parameter for riverine ecosystems. These datasets were desired by the NPS to help inform and mitigate potential impacts to mussels or benthic habitat.
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The U.S. Geological Survey (USGS) collected hydroacoustic data of the St. Croix River adjacent to the Osceola (WI) boat ramp for hydrographic and benthic mapping prior to the reconstruction project implemented by the National Park Service (NPS). This dataset contains reference locations that were obtained while collecting ground-truth information for geologic substrate. For statistical analysis, the locations were selected using random point sampling. The shapefile contains sample location coordinates, a general description of interpreted surficial sediment type, and an indication of mussel presence/absence in the attribute table. These geospatial locations directly correspond to the "still-images" dataset.
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Hydroacoustic (sonar) data were collected for the Mississippi, St. Croix, and Minnesota Rivers for the development of high-resolution bathymetry and sidescan imagery. Combining these data in a GIS can provide key components to characterizing physical benthic habitat for native mussels in a riverine environment. These information needs were highly desired by the National Park Service to more accurately assess environmental factors that influence native mussel distribution. The collaborative effort was funded by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) Environment and Natural Resources Trust Fund (ENRTF), to help maintain and enhance Minnesota’s environment and natural resources.
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The U.S. Geological Survey (USGS) collected hydroacoustic data of the St. Croix River adjacent to the Osceola (WI) boat ramp for hydrographic and benthic mapping prior to the reconstruction project implemented by the National Park Service (NPS). High-resolution bathymetry data was surveyed using a multibeam sonar. The depth and characteristics of the riverbed are important parameters of habitat for benthic (bottom-dwelling) organisms, and are a fundamental parameter for riverine ecosystems. These datasets were desired by the NPS to help inform and mitigate potential impacts to mussels or benthic habitat.
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Hydroacoustic (sonar) data were collected for the Mississippi, St. Croix, and Minnesota Rivers for the development of high-resolution bathymetry and sidescan imagery. Small areas containing priority mussel habitat had additional collection efforts to map water velocities and bottom composition. Combining these data in a GIS can provide key components to characterizing physical benthic habitat for native mussels in a riverine environment. This information is highly desired by the National Park Service to more accurately assess environmental factors that influence native mussel distribution. The collaborative effort was funded by the Legislative-Citizen Commission on Minnesota Resources (LCCMR) Environment and Natural...
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Using high-resolution sonar technologies with geographic information systems (GIS) and object based image analysis, benthic habitats of the Illinois River will be interpreted to support Asian carp research, monitoring and control. The entire study plan will consist of data collection and analysis of the Brandon, Dresden, Starved Rock, Marseilles, Peoria, La Grange and Alton reaches of the Illinois River. Reaches with larger aquatic areas (Peoria, La Grange and Alton), will have priority areas and backwaters collected and analyzed first.


map background search result map search result map Illinois River, Hanson Pit - East, Multibeam Bathymetry, June 2018 SACN Osceola Boat Landing: 2019 River Bed Observations SACN Osceola Boat Landing: 2019 Substrate Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Depth Hillshade SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Elevation Hillshade Illinois River, Hanson Pits, East Pit, Sidescan Image Mosaic, 2018-2020 St. Croix River - Bathymetry Digital Elevation Model (DEM) - 2018 Mississippi National River and Recreation Area Bathymetry, Mississippi River, 2019-2021 Mississippi National River and Recreation Area, ADCP Flow Diffusion of the Mississippi River near Hidden Falls, MN, 20190829 Mississippi National River and Recreation Area, Substrate Characterization of the Mississippi River near Hidden Falls, MN, 2019 Illinois River, Peoria Side Channel - Chillicothe Slough, Multibeam Sidescan Image Mosaic, September 2019 Illinois River, Peoria Side Channel - Henry Island, Multibeam Sidescan Image Mosaic, September 2019 Illinois River, Peoria Side Channel - Hennepin Island, Multibeam Bathymetry, September 2019 Illinois River, Peoria Side Channel - Henry Island, Multibeam Bathymetry, September 2019 Illinois River, Dresden, Bathymetric Terrain Ruggedness Index, 2018 Illinois River, Brandon, Bathymetric Roughness, May 2018 Illinois River, Brandon, Bathymetric Slope, May 2018 700kHz Bathymetric Slope of select Rock Outcrops of the St. Croix River, May 2021 Illinois River, Peoria Side Channel - Hennepin Island, Multibeam Bathymetry, September 2019 SACN Osceola Boat Landing: 2019 River Bed Observations SACN Osceola Boat Landing: 2019 Substrate Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Depth Hillshade SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Elevation Hillshade Illinois River, Peoria Side Channel - Chillicothe Slough, Multibeam Sidescan Image Mosaic, September 2019 Illinois River, Peoria Side Channel - Henry Island, Multibeam Bathymetry, September 2019 Illinois River, Peoria Side Channel - Henry Island, Multibeam Sidescan Image Mosaic, September 2019 Illinois River, Hanson Pit - East, Multibeam Bathymetry, June 2018 Illinois River, Hanson Pits, East Pit, Sidescan Image Mosaic, 2018-2020 Mississippi National River and Recreation Area, ADCP Flow Diffusion of the Mississippi River near Hidden Falls, MN, 20190829 Mississippi National River and Recreation Area, Substrate Characterization of the Mississippi River near Hidden Falls, MN, 2019 Illinois River, Brandon, Bathymetric Roughness, May 2018 Illinois River, Brandon, Bathymetric Slope, May 2018 700kHz Bathymetric Slope of select Rock Outcrops of the St. Croix River, May 2021 Illinois River, Dresden, Bathymetric Terrain Ruggedness Index, 2018 St. Croix River - Bathymetry Digital Elevation Model (DEM) - 2018 Mississippi National River and Recreation Area Bathymetry, Mississippi River, 2019-2021