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Filters Date Range Past year (2) Past month (1) Past week (1) Past day (0) Custom range... To   Search Extensions Shapefile (4) Types Downloadable (4) Map Service (4) OGC WFS Layer (4) OGC WMS Layer (4) Contacts Nebraska Water Science Center U.S. Geological Survey - ScienceBase Kellan R Strauch U.S. Geological Survey Philip J Soenksen More... Categories Data (4) Tag Types Theme (4) Place (4) Tag Schemes USGS Thesaurus (4) Common geographic areas (3) Marine Realms Information Bank (MRIB) keywords (3) ISO 19115 Topic Category (3) Common Geographic Areas (1) Alexandria Digital Library Feature Type Thesaurus (1) The National Map Theme Thesaurus (1) View Results as: JSON ATOM CSV

Base-flow recession time constant (tau) contours in the Niobrara National Scenic River in Nebraska, 2016-18 This dataset contains base-flow recession time constant (tau) contours that are interpreted from tau values calculated at streamgages in the Niobrara National Scenic River study area. The contours were created by interpolating the calculated tau values using geostatistical kriging methods. Kriging is a geostatistical method that can be used to determine optimal weights for measurements at sampled locations (streamgages) for the estimation of values at unsampled locations (ungaged sites). The kriged tau map could be used (1) as the basis for identifying areas with different hydrologic responsiveness, and (2) in the development of regional low-flow regression equations. The Geostatistical Analyst tools in ArcGIS Pro... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brown, Cherry, Keya Paha, Nebraska, Niobrara, All tags... geoscientificInformation, groundwater and surface-water interaction, inlandWaters, kriging, seepage studies, stream-gage measurement, streamflow, Fewer tags Calculated base-flow recession time constants at streamgages in the Niobrara National Scenic River in Nebraska, 2016-18 The base-flow recession time constant (tau) is a hydrologic index that characterizes the ability of a ground-water system to supply flow to a stream draining from that system. The magnitude of tau indicates the degree of hydraulic conductivity of the stream to the groundwater system. Larger tau values indicate a stronger dependence on the groundwater system for streamflows, a smaller base-flow recession value indicates that the stream is not as dependent on the groundwater system for streamflows. Tau and other correlated hydrologic indices have been used as explanatory variables to greatly improve the predictive power of low-flow regression equations. Tau can also be used as an indicator of streamflow dependence... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brown, Cherry, Keya Paha, Nebraska, Niobrara, All tags... geoscientificInformation, groundwater and surface-water interaction, inlandWaters, seepage studies, stream-gage measurement, streamflow, Fewer tags Shapefile of flood inundation maps for Papillion Creek near Offutt Air Force Base, Nebraska These data-sets are polygon shapefiles that represent flood inundation boundaries for 157 flooding scenarios in an 8-mile reach of the Papillion Creek near Offutt Air Force Base. These shapefiles were created by the U.S. Geological Survey (USGS) in cooperation with the U.S. Air Force, Offutt Air Force Base for use within the USGS Flood Inundation Mapping program. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science website at https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgages on the Papillion... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Big Papillion-Mosquito, Map, Nebraska, Sarpy, floodplain, All tags... floodplains, floods, groundwater and surface-water interaction, hazard preparedness, hazards, hydraulic engineering, hydrology, hydrology, inlandWaters, mapping, river, stream, stream-gage measurement, streamflow, surface-water level, web map services, Fewer tags Central Valley Hydrologic Model (CVHM2): Monthly Median Observed Streamflow These data are monthly median observed streamflow from 32 gages in the Central Valley for comparison to the updated Central Valley Hydrologic Model (CVHM2). The locations of these gages are shown in the shape file. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central Valley, United States, datasets, stream-gage measurement, All tags... streamflow, Fewer tags