Amanda R Whaling

Bathymetry and Storage Capacity of Nimrod Lake, Arkansas

A bathymetric survey of Nimrod Lake, Arkansas, was conducted in late April to mid-May, 2016, by the Lower Mississippi-Gulf Water Science Center (LMG WSC) of the U.S. Geological Survey (USGS) using methodologies for sonar surveys similar to those described by Wilson and Richards (2006) and Richards and Huizinga (2018). Point data from the bathymetric survey were merged with point data from an aerial LiDAR survey conducted in December, 2010, that were provided by the U.S. Army Corps of Engineers (USACE), Little Rock District. From the combined point dataset, a terrain dataset (a type of triangulated irregular network, or TIN, model) was created in Esri ArcGIS, version 10.5, for the area within the approximate extent...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ADCP, AR, ASCII, Acoustic, Arkansas, All tags... Bathymetry and Elevation, Doppler, GNIS ID 75802, LIDAR, Nimrod Lake, Perry County, USGS Science Data Catalog (SDC), Water Depth, XYZ, Yell County, digital terrain models, elevation, inlandWaters, limnology, sonar, terrain dataset, Fewer tags

In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves bridge crossings over the French Broad River (FBR) near Asheville, North Carolina. The NCDOT is committed to minimizing environmental impacts resulting from the I 26 widening project and aims to be a steward of the FBR corridor. To be effective environmental stewards, NCDOT needs to know when and where geomorphologic changes are occurring within potentially impacted areas. In June 2019, the U.S Geological Survey (USGS) in cooperation with the NCDOT, began collecting pre-construction bathymetric and topographic data to characterize streambed and streambank morphology...

Flood-frequency of rural, non-tidal streams in Louisiana and parts of Arkansas, Mississippi, and Texas, 1877-2016

The dataset includes flood-frequency data and related files for 211 streamgages operated by the U.S. Geological Survey (USGS) in Louisiana and parts of the surrounding states of Arkansas, Mississippi, and Texas as well as assembled explanatory variables (physical, climatic, and land-use characteristics of the basins). The data in this release were used in generalized least-squares (GLS ) regression analyses (Stedinger and Tasker, 1985) to generate equations used to predict annual exceedance probabilities (AEPs) at ungaged locations on streams in the study area (Ensminger and others, 2021). Flood-frequency analyses were conducted using annual peak-flow data from the 1877-2016 water years to estimate streamflows...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Hydrology, Louisiana, Mississippi, Ouachita River, All tags... Red River, Sabine River, Texas, USGS Science Data Catalog (SDC), Water Resources, basin characteristics, flood frequency, linear regression, weighted regression, Fewer tags

Digital elevation model, in meters, of the bathymetry of Dierks Lake, Arkansas

The dataset is a digital elevation model (DEM), in GeoTiff format, of the bathymetry of Dierks Lake, Howard and Sevier Counties, Arkansas. The extent of the DEM represents the area encompassing the extent of the aerial Light Detection And Ranging (LiDAR) data used in the project. Horizontal and vertical units are expressed in meters. The DEM was derived from an LAS dataset (an industry-standard binary format for storing aerial LiDAR data) created from point datasets stored in “Dierks2018_gdb”. The point datasets include aerial LiDAR data from a survey conducted in 2016 by the National Resources Conservation Service (U.S. Geological Survey, 2017), point data from digitized historical topographic maps, and bathymetric...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ADCP, AR, ASCII, Acoustic, Arkansas, All tags... Bathymetry and Elevation, DEM, Dierks Lake, Doppler, GNIS ID 75695, Howard County, LIDAR, Water Depth, XYZ, digital elevation models, digital terrain models, elevation, inlandWaters, limnology, sonar, terrain dataset, Fewer tags

Single-beam bathymetric survey of the French Broad River near the Interstate 26 bridge located south of Asheville, NC – June 2021, Mid-Construction #2

In January 2020, the North Carolina Department of Transportation (NCDOT) began work on the Interstate 26 (I 26) highway widening project that involves a bridge crossing over the French Broad River (FBR) near Asheville, North Carolina. The U.S Geological Survey (USGS) in cooperation with the NCDOT conducted a pre-construction bathymetric survey of the streambed in June 2019 (Whaling and Wagner, 2021) within a one-kilometer reach of the FBR at the bridge construction site. A canoe-based repeat bathymetric survey was collected with a single-beam echosounder approximately 18 months after construction began, with the purpose to monitor geomorphological changes to the streambed and inform the NCDOT of potential impacts...

Tags: Asheville, Buncombe County, Geomorphology, North Carolina, Single-beam echosounder, All tags... USGS Science Data Catalog (SDC), XYZ, bathymetry, elevation, geomorphology, inlandWaters, Fewer tags