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Amanda R Whaling

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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...
In January 2020, The North Carolina Department of Transportation (NCDOT) began work on an extensive highway widening project on Interstate-26 (I-26) which is adjacent to, and on two bridge crossings over the French Broad River. The NCDOT has committed to minimizing environmental impacts resulting from the I-26 Widening project and aims to become a steward of the French Broad River corridor. To be effective environmental stewards, NCDOT needs to know when and where geomorphologic changes have occurred as a result of highway construction activities. In June 2019, the U.S Geological Survey (USGS) in cooperation with the NCDOT, began pre-construction bathymetric and topographic surveys of select highway construction...
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The North Carolina Department of Transportation (NCDOT) began work on a highway widening project on Interstate-26 (I-26) in January 2020. The French Broad River flows adjacent to and under I-26 in the project area, located in Buncombe County of North Carolina. The NCDOT identified channel and streambank morphology as a potential indicator they were interested in monitoring at three focus areas to track impacts from construction activities. The U.S. Geological Survey (USGS) in cooperation with the NCDOT conducted a single-beam bathymetric survey of one of the three focus areas in June of 2019, approximately seven months before construction was to begin. The survey extended from 300 meters (m) upstream to 500 m downstream...
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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...
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The dataset is a digital elevation model (DEM), in GeoTiff format, of the bathymetry of Gillham Lake, Sevier County, 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 “Gillham2018_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 data from...
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