Filters: Tags: Niobrara River (X) > Types: Shapefile (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (5) Types Downloadable (5) Map Service (5) OGC WFS Layer (5) OGC WMS Layer (5) Citation (4) OGC WMS Service (1) Contacts Carl J Legleiter U.S. Geological Survey - ScienceBase Office of the Rocky Mountain Regional Director U.S. Geological Survey Edward A Bulliner More... Categories Data (5) Tag Types Place (5) Theme (5) Harvest Set (3) Tag Schemes Geographic Names Information System (GNIS) (4) USGS Thesaurus (4) None (2) ISO 19115 Topic Category (2) Alexandria Digital Library Feature Type Thesaurus (1) View Results as: JSON ATOM CSV

Niobrara River suspended-sediment and bed-sediment data collection sites near Spencer, Nebr., October through November, 2014 In the fall of 2014 (October-November) the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers collected sediment samples (suspended and bed material) at several sites on the Niobrara River in Nebraska near the Spencer Dam prior to, during, and immediately after a sediment-flushing event. Suspended-sediment samples were analyzed for sediment concentration and percent finer than sand. Bed sediment samples were analyzed for particle-size distribution using standard classes by sieve analysis. In addition, a Sequoia LISST Streamside particle-size analyzer (PSA) was deployed during the first week of the flush; this unit collected suspended-sediment concentration and grain-size data. Sampled sites... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Nebraska, Niobrara River, Niobrara River, Spencer Dam, bed sediment, All tags... geoscientificInformation, inlandWaters, reservoir management, sediment management, sediment monitoring, suspended sediment, Fewer tags Hyperspectral image data from the Niobrara River, Nebraska, November 2012 and August 2016 Hyperspectral image data from the Niobrara River, a dynamic, sand-bed channel in northern Nebraska, were acquired in November 2012 and again in August 2016 to support research on remote sensing of rivers, particularly retrieval of water depth and tracking of mobile bedforms. These data were collected by the Compact Airborne Spectrographic Imager (CASI) 1500H manufactured by ITRES Research Limited. The data were acquired from fixed wing aircraft and have spatial resolutions (pixel sizes) from 0.5 - 0.6 m. The data consist of a large number of spectral bands spanning the visible and near infrared wavelengths and have been radiometrically corrected. The image pixel values represent spectral radiance units of 1 uW cm-2... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Nebraska, Niobrara River, Norden Bridge, USGS Science Data Catalog (SDC), bedforms, All tags... depth, hyperspectral, remote sensing, rivers, Fewer tags Interior least tern sandbar nesting habitat measurements from Landsat TM imagery Sandbars of large sand-bedded rivers of the Central U.S. serve important ecological functions to many species, including the endangered Interior Least Tern (Sternula antillarum) (ILT). ILT are colonial birds which feed on fish and nest primarily on riverine sandbars during their annual breeding season of approximately May through July, depending on region. During this time, ILT require bare sand of sufficient elevation so as not to be inundated during the period between nest initiation and fledging of hatchlings. ILT were originally listed as endangered due in part to decreases in available sandbar habitat from river channelization and impoundment. Sandbars in Central U.S. rivers used by ILT are highly dynamic,... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas River, Canadian River, Cheyenne River, Cimarron River, Interior Least Tern, All tags... Kansas River, Loup River, Mississippi River, Missouri River, Niobrara River, Platte River, Red River, State of Arkansas, State of Illinois, State of Indiana, State of Iowa, State of Kansas, State of Kentucky, State of Louisiana, State of Mississippi, State of Missouri, State of Montana, State of Nebraska, State of North Dakota, State of Oklahoma, State of South Dakota, State of Tennessee, State of Texas, Wabash River, Yellowstone River, bars (physiographic), image collections, inlandWaters, multispectral imaging, rivers, Fewer tags Field-based bathymetric surveys of the Niobrara River, Nebraska, November 2012 and August 2016 Field measurements of water depth were collected from the Niobrara River, a dynamic, sand-bed channel in northern Nebraska, in November 2012 and again in August 2016 to support research on remote sensing of rivers, particularly retrieval of water depth and tracking of mobile bedforms. These data were obtained by conducting topographic surveys with Trimble R8 and R10 RTK GPS receivers with a local base station and also by measuring depths with a SonTek RiverSurveyor S5 acoustic Doppler current profiler (ADCP). The data are provided in a series of tables saved as *.csv files. All tables include, at a minimum, easting and northing spatial coordinates and depths; other attributes in some of the tables include descriptive... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Niobrara River, Norden Bridge, USGS Science Data Catalog (SDC), bathymetry, bedforms, All tags... depth, remote sensing, rivers, Fewer tags Field spectra from the Niobrara River, Nebraska, August 15-18, 2016 The U.S. Geological Survey collected field spectra collected from the Niobrara River in Nebraska August 15–18, 2016, to support research on remote sensing of river discharge. Reflectance measurements were made by wading the Niobrara River near Norden Notch using an Analytical Spectral Devices FieldSpec3 spectroradiometer operated in reflectance mode. The original *.asd files are provided in this data release. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Nebraska, Niobrara River, USGS Science Data Catalog (SDC), bathymetry, depth, All tags... field spectra, reflectance, river, Fewer tags