Filters: Tags: Snake River (X) > Types: Map Service (X) > partyWithName: U.S. Geological Survey (X)

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Depth measurements from the Snake River in Grand Teton National Park, WY, August 19-24, 2015 Field measurements of water depth were acquired from a reach of the Snake River in Grand Teton National Park, WY, August 19-24, 2015, to support research on channel change along the Snake River and, more broadly, remote sensing of rivers. The depth measurements included in this data release were obtained by wading the shallow channel margins and measuring the water depth directly on a top-setting wading rod used to collect flow velocity data with an acoustic Doppler velocimeter (ADV). For the deeper areas representing most of the channel, depths were recorded along a series of cross-sections by a SonTek RiverSurveyor M9 acoustic Doppler current profiler (ADCP) deployed from a kayak with the vertical beam of the... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Acoustic Doppler Current Profiler, Grand Teton National Park, Snake River, Wyoming (WY), bathymetry, All tags... depth, rivers, Fewer tags Field spectra from the Snake River in Grand Teton National Park, WY, August 23, 2015 Field spectra were collected from the Snake River in Grand Teton National Park, WY, August 23, 2015, to support research on remote sensing of rivers. Reflectance measurements were made from a raft in the Swallow Bend reach of the Snake River using an Analytical Spectral Devices FieldSpec3 spectroradiometer operated in reflectance mode. The depth at each spectral measurement location was interpolated from field measurements of depth obtained with an acoustic Doppler current profiler. This data release provides both the reflectance spectra and the interpolated depths and can be used to develop relationships between depth and reflectance for mapping river bathymetry from field spectra or passive optical remotely sensed... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Grand Teton National Park, Snake River, Wyoming, depth, field spectra, All tags... reflectance, Fewer tags Hyperspectral image data and field measurements used for bathymetric mapping of the Snake River in Grand Teton National Park, WY Hyperspectral image data and various field measurements were acquired from a reach of the Snake River in Grand Teton National Park, WY, August 19-24, 2015, to support research on remote sensing of rivers. This parent data release includes links to child pages for the following data sets: 1) hyperspectral image data; 2) ground-based depth measurements obtained by wading and with with an acoustic Doppler current profiler; 3) reflectance spectra acquired from a raft; and 4) an irradiance profile used to characterize attenuation of light by the water column. Please refer to the individual child pages for further detail about each data set. Overall, these data were used to develop improved methods of estimating water... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Grand Teton National Park, Snake River, USGS Science Data Catalog (SDC), Wyoming (WY), bathymetry, All tags... depth, field spectra, hyperspectral, reflectance, remote sensing, river, Fewer tags Downwelling spectral irradiance profile from the Snake River in Grand Teton National Park, WY, August 23, 2015 A vertical profile of downwelling spectral irradiance at different depths within the water column was measured on the Snake River in Grand Teton National Park, WY, August 23, 2015, to support research on remote sensing of rivers. Downwelling spectral irradiance data were collected using an Analytical Spectral Devices FieldSpec3 spectroradiometer operated in irradiance mode and deployed from a customized measurement crane. The measurements were made in a reach downstream of Jackson Lake referred to as Swallow bend. In addition, the depth at which each downwelling spectral irradiance measurement was made was obtained using an Onset Hobo pressure transducer mounted next to the spectroradiometer foreoptic on the crane.... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Grand Teton National Park, Snake River, Wyoming, attenuation, depth, All tags... downwelling spectral irradiance, remote sensing, vertical profile, Fewer tags Hyperspectral image data from the Snake River in Grand Teton National Park, WY, August 23, 2015 Hyperspectral image data from the Snake River in Grand Teton National Park, WY, were acquired on August 23, 2015 to support research on remote sensing of rivers, particularly retrieval of water depth, and to facilitate efforts to augment an image time series for characterizing channel change along the Snake River. These data were collected by the Compact Airborne Spectrographic Imager (CASI) 1500H manufactured by ITRES Research Limited. ITRES also conducted the flight and performed the initial radiometric and geometric data processing. The data were acquired from fixed wing aircraft and have a spatial resolution (pixel sizes) of 0.5 m. The data set consists of 48 spectral bands spanning the visible and near infrared... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Grand Teton National Park, Snake River, Wyoming, bathymetry, channel change, All tags... depth, hyperspectral, remote sensing, rivers, Fewer tags