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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). Backscatter is the acoustic reflectivity, which is the measure of energy obtained from the echo intensity, and can provide an indication about the nature of the river bottom and its physical character. Image analysis and classification of backscatter, with the combined datasets of bathymetry (and its derivatives) and ground truthing, can predict surficial substrate, or sediment type. For habitat analysis, these datasets were desired by the NPS to help inform and mitigate...
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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. A terrestrial lidar unit was used to collect shoreline elevation points. These datasets were highly desired by the NPS to help inform and mitigate potential impacts to mussels or benthic habitat.
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The U.S. Virgin Islands 2007 land cover, created as part of the USVIGAP analysis project supported by the USGS, is a forty-nine class land cover classification. The USVIGAP land cover is based primarily on the unsupervised classification of five Earth Observing 1 (EO-1) Advanced Land Imager (ALI) scenes acquired in 2007. The ALI scenes were processed, segmented into geoclimatic zones and classified individually. ASTER and Landsat 7 ETM+ imagery from 2008 and 2009 were used to complete areas of no data resulting from cloud and cloud shadow in the initial ALI classification. The land cover was created through the use of the spectral information derived from the satellite imagery and ancillary data such as geology,...
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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). 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. A terrestrial lidar unit was used to collect shoreline elevation points. 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). The dataset is a collection of still-shot images to be used as ground-truth data for geologic substrate. The still-images (jpeg format) were captured from underwater video using an Aqua-Vu system. For statistical analysis, the videos were sampled at random point locations. A short video captured the surficial geologic sediment type at each location. This collection of images directly corresponds with the geospatial shapefile containing sample location coordinates, a general...
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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). 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). Acoustic Doppler Current Profiler (ADCP) measures river flow and discharge applications on inland environments. 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). Sidescan image mosaics are often used in benthic mapping because it provides a picture of the physical bed characteristics. Sidescan sonar collects data over a relatively large area based on differences in acoustic reflectance signature. 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). 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). 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. Fluvial geomorphology is the study of forming and shaping landforms caused by the action of water. These landforms can be classified to macro and meso habitat classes, to better understand habitat associations. These datasets...


    map background search result map search result map U.S. Virgin Islands 2007 GAP Land Cover SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Depth Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Topobathy Elevation Data SACN Osceola Boat Landing: 2019 Acoustic Doppler Current Profiler (ADCP) Data SACN Osceola Boat Landing: 2019 Backscatter (Acoustic Reflectivity) Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Elevation Data SACN Osceola Boat Landing: 2019 River Bed Observations, Still Images SACN Osceola Boat Landing: 2019 Landforms Data SACN Osceola Boat Landing: 2019 Sidescan Sonar 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 SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Topobathy Elevation Hillshade SACN Osceola Boat Landing: 2019 River Bed Observations, Still Images SACN Osceola Boat Landing: 2019 Acoustic Doppler Current Profiler (ADCP) Data SACN Osceola Boat Landing: 2019 Sidescan Sonar Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Depth Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Bathymetry Elevation Data SACN Osceola Boat Landing: 2019 Landforms 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 SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Topobathy Elevation Data SACN Osceola Boat Landing: 2019 Digital Elevation Model (DEM), Topobathy Elevation Hillshade SACN Osceola Boat Landing: 2019 Backscatter (Acoustic Reflectivity) Data U.S. Virgin Islands 2007 GAP Land Cover